Atomic Structure and Isotopes

Atomic Structure and Isotopes

Assessment

Interactive Video

Chemistry

9th - 12th Grade

Hard

Created by

Sophia Harris

FREE Resource

Dr. B conducts a chemistry tutorial focusing on protons, neutrons, and electrons. The session involves solving problems similar to those found on AP Chemistry, MCAT, and NEET exams. Key topics include atomic numbers, mass numbers, electron configurations, and isotopes. The tutorial covers elements like sulfur, oxygen, calcium, and carbon, emphasizing problem-solving techniques and understanding atomic structures.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the atomic number of an element with 16 protons?

17

16

15

14

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many neutrons are present in an element with a mass number of 32 and 16 protons?

14

16

20

18

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which element has an atomic number of 8 and a mass number of 16?

Neon

Nitrogen

Fluorine

Oxygen

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the electron configuration for oxygen in its ground state?

1s2 2s2 2p4

1s2 2s2 2p6

1s2 2s2 2p5

1s2 2s2 2p3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the mass number of an element not always a whole number?

Due to isotopes

Due to electron mass

Due to atomic number

Due to proton mass

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the atomic number of an element with 20 protons?

21

18

19

20

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which electrons are involved in chemical bonding?

Core electrons

Neutrons

Valence electrons

All electrons

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