Giáo Dục

Hóa lớp 10 Bài 2- Hạt nhân nguyên tử. Nguyên tố hóa học

Giải bài 1 trang 11 SGK Hóa 10 nâng cao

Bài 1 (trang 11 sgk Hóa 10 nâng cao): Nguyên tố hóa học là những nguyên tử có cùng:

A. số khối.

B. số nơtron

C. số proton.

D. số nơtron và proton.

Chọn đáp án đúng.

Lời giải:

Chọn C. Nguyên tố hóa học là những nguyên tử có cùng điện tích hạt nhân (hay số proton).

Giải bài 2 trang 11 SGK Hóa 10 nâng cao

Bài 2 (trang 11 sgk Hóa 10 nâng cao): Kí hiệu nguyên tử biểu thị đầy đủ đặc trưng cho nguyên tử của một nguyên tố hóa học vì nó cho biết:

A. số khối A. 

B. số hiệu nguyên tử Z

C. nguyên tử khối của nguyên tử.

D. số khối A và số đơn vị điện tích hạt nhân.

Chọn đáp án đúng.

Lời giải:

Chọn D.

Giải bài 3 trang 11 SGK Hóa 10 nâng cao

Bài 3 (trang 11 sgk Hóa 10 nâng cao): Hãy cho biết mối liên hệ giữa số proton, số đơn vị điện tích hạt nhân và số electron trong một nguyên tử. Giải thích và cho ví dụ.

Lời giải:

Trong nguyên tử ta luôn có:

Số đơn vị điện tích hạt nhân = số proton = số electron.

Do nguyên tử trung hòa về điện nên số proton trong hạt nhân bằng số electron của nguyên tử..

Độc giả tự giải thích và cho ví dụ.

VD:

natri 1

Giải bài 4 trang 11 SGK Hóa 10 nâng cao

Bài 4 (trang 11 sgk Hóa 10 nâng cao): Hãy cho biết số đơn vị điện tích hạt nhân, số proton, số nơtron và số electron của các nguyên tử có kí hiệu sau đây:

bai 4 trang 11 sgk hoa 10 nang cao

Lời giải:

bai 4 trang 11 sgk hoa 10 nang cao 1

Giải bài 5 trang 11 SGK Hóa 10 nâng cao

Bài 5 (trang 11 sgk Hóa 10 nâng cao): Ytri (Y) dùng làm vật liệu siêu dẫn có số khối là 88. Dựa vào bảng tuần hoàn, hãy xác định số proton, số nơtron và số electron của nguyên tử nguyên tố Y.

Lời giải:

Tra trong bảng tuần hoàn ta có: ZY = 39.

Theo đề bài: AY = 88 => N = A – Z = 88 – 39 = 49.

Vậy số p là 39, số e là 39 và số n là 49.

Bản quyền bài viết thuộc trường trung học phổ thông Sóc Trăng. Mọi hành vi sao chép đều là gian lận.
Nguồn chia sẻ: Trường THPT Thành Phố Sóc Trăng (thptsoctrang.edu.vn)

Nguyễn Thị Hương Thủy

Cô giáo Nguyễn Thị Hương Thủy tốt nghiệp trường Đại học Sư phạm Hà Nội và hiện đang tham gia giảng dạy môn Ngữ Văn. Cô có 20 năm kinh nghiệm giảng dạy, dẫn dắt nhiều thế hệ học sinh đạt những thành tích cao và đặt chân vào các trường đại học danh tiếng. Cô gặt hái được rất nhiều thành công trong sự nghiệp: giải Nhì trong cuộc thi giáo viên giỏi do thành phố Hà Nội tổ chức, tham gia giảng dạy đội tuyển Học sinh giỏi Quốc gia.

31 Comments

  1. Genießen Sie eine beeindruckende Auswahl von über 80
    Spielautomaten, 4 Live-Tischspielen und einem aufregenden Auto-Jackpot-System mit Preisen wie Mercedes-Benz Autos.

    Mit über 75 Jahren Tradition und Prestige ist unser historisches Casino ein Zufluchtsort für diejenigen, die das ultimative Spielerlebnis suchen – Live-Tischspiele, moderne Spielautomaten und eine Atmosphäre, die Raffinesse und Glamour ausstrahlt.

    Diese klassischen Tischspiele bieten ein fesselndes Erlebnis für Spieler,
    die es genießen, in Echtzeit mit menschlichen Dealern zu interagieren.
    Dieses physische Spielbank Bad Neuenahr Casino bietet eine beeindruckende Auswahl
    an Spielen, darunter über 80 Spielautomaten und vier Tischspiele, wie American Roulette und
    Blackjack. Genießen Sie eine große Auswahl an Live-Tischspielen, darunter Französisches
    Roulette, Amerikanisches Roulette, Blackjack und Texas Hold’em Poker, sowie eine beeindruckende Auswahl
    an Spielautomaten. Gestützt auf starke Sicherheitsmaßnahmen und verantwortungsvolle Glücksspielmerkmale
    können die Spieler ihrem Spielerlebnis in der Spielbank
    Bad Neuenahr vertrauen – kommen Sie und spielen Sie heute mit
    uns! Mit über 80 aufregenden Spielautomaten und Live-Tischspielen werden Sie am Rande Ihres Sitzes sein. Mit über 80 Spielautomaten und 4 Live-Tischspielen, darunter American Roulette, Blackjack und Poker, ist für
    jeden Spieler etwas dabei.

    References:
    https://online-spielhallen.de/cpu-rangliste-nov-2025-update-ryzen-9-9950x3d/

  2. From its game collection to payment methods to the site
    theme, everything is tailored only for users from India. It allows deposits and
    withdrawals through UPI and cryptocurrencies as well as credit/debit cards, ranging from
    500 Indian rupees. You can hit the spin button with your favourite streamer and enjoy
    the game together. Roobet’s minimum deposit is
    low, so you don’t have to commit so much in the beginning.

    Tables games, such as blackjack or craps, involve
    one or more players who are competing against the house (the casino itself)
    rather than each other. You need to make sure you are playing slots with high Return to Player (RTP) percentages, advantageous bonuses, good overall ratings and a
    theme you appreciate. This is especially important if you’re planning on playing for real money.
    Every reputable slots casino will offer players
    the option to play slots for free. As you can see from the table
    below, both real money and free games come
    with advantages and disadvantages. There are plenty of options out there, but we only recommend the best online casinos so pick the one that suits you.

    Enjoy online slots at the best slots casinos in 2025.
    Whatever casino game you decide to play, read all the
    rules regarding the game before betting any money, including
    how payouts work. No, casino games are not rigged.
    Free games offer unlimited play, and are great for building up your skills and trying out new games.
    For further information on this, our How to choose an online casino
    article covers everything you need to do to have the
    best gambling experience possible.

    References:
    https://blackcoin.co/the-match-game-rules-wins-and-popular-strategies/

  3. The medium-risk approach is meant for those players who enjoy the balance of
    things. We suggest you try the Plinko demo version here at Plinkocasinos.com before you
    play it for real money. 🎮 Beyond Plinko casino games,
    Hacksaw Gaming offers an impressive collection of slots and instant
    win titles. Based in Malta, this young developer has revolutionized the market with its fresh approach to game design and player experience.

    Fat Pirate launchedin 2021 to serve Australian players with
    a stable, fully-optimized gambling platform. We carefully review and rate the
    best casinos where you can play Plinko Australia.

    We have carefully selected the top Australian casinos where you can enjoy Plinko game in a
    secure and regulated environment. All platforms are licensed and secure,
    with over 1.1 million players worldwide. The best Australian online casinos for
    Plinko offer multipliers up to x1000 and a 100% welcome bonus.

    The Plinko demo allows players to engage with the game without risking actual funds, providing a convenient
    way to test strategies and learn mechanics. Choosing the
    right online casino to play Plinko involves considering several key factors to guarantee a safe, enjoyable, and rewarding gaming experience.

    The Plinko app offers a fast and secure gaming experience, letting you play
    anytime with just a 2-minute setup. “Plinko — classic gameplay with many bet options and a max win of up to 1000×.”

    References:
    https://blackcoin.co/casino-payments-uk-payment-methods-for-online-casinos/

  4. It is the best time to make some plans for the future and it’s time to be happy. I’ve read this post and if I could I desire to suggest you some interesting things or suggestions. Perhaps you can write next articles referring to this article. I want to read even more things about it!

  5. This design is incredible! You most certainly know how to keep a reader amused. Between your wit and your videos, I was almost moved to start my own blog (well, almost…HaHa!) Wonderful job. I really loved what you had to say, and more than that, how you presented it. Too cool!

  6. Excellent post. I was checking continuously this blog and I’m inspired! Extremely helpful info particularly the last part 🙂 I handle such info a lot. I was seeking this particular info for a very lengthy time. Thanks and good luck.

  7. I have read several excellent stuff here. Definitely value bookmarking for revisiting. I wonder how so much effort you place to create this sort of excellent informative website.

  8. 486152 358855Can I just now say that of a relief to locate somebody who truly knows what theyre speaking about online. You in fact know how to bring a difficulty to light and work out it crucial. The diet require to see this and appreciate this side on the story. I cant believe youre no more popular since you certainly possess the gift. 788106

  9. I am curious to find out what blog system you’re utilizing? I’m having some small security problems with my latest blog and I would like to find something more risk-free. Do you have any solutions?

  10. You have made some decent points there. I looked on the net for more information about the issue and found most individuals will go along with your views on this web site.

  11. Today, while I was at work, my cousin stole my apple ipad and tested to see if it can survive a 25 foot drop, just so she can be a youtube sensation. My iPad is now destroyed and she has 83 views. I know this is totally off topic but I had to share it with someone!

  12. That is really fascinating, You’re an overly skilled blogger. I have joined your feed and stay up for seeking extra of your great post. Additionally, I’ve shared your web site in my social networks

  13. Just wish to say your article is as surprising. The clarity to your put up is just nice and that i could assume you are knowledgeable on this subject. Fine along with your permission allow me to take hold of your feed to keep updated with drawing close post. Thank you 1,000,000 and please keep up the rewarding work.

  14. Hello there I am so thrilled I found your weblog, I really found you by error, while I was looking on Bing for something else, Anyhow I am here now and would just like to say thanks for a marvelous post and a all round enjoyable blog (I also love the theme/design), I don’t have time to go through it all at the minute but I have saved it and also included your RSS feeds, so when I have time I will be back to read more, Please do keep up the superb job.

  15. Hi there, just became aware of your blog through Google, and found that it is really informative. I am going to watch out for brussels. I’ll be grateful if you continue this in future. Lots of people will be benefited from your writing. Cheers!

Để lại một bình luận

Email của bạn sẽ không được hiển thị công khai. Các trường bắt buộc được đánh dấu *

Back to top button