Atomic Structure & Nuclear Chemistry Review

Atomic Structure & Nuclear Chemistry Review

8th Grade - University

50 Qs

quiz-placeholder

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Atomic Structure & Nuclear Chemistry Review

Atomic Structure & Nuclear Chemistry Review

Assessment

Quiz

Science, Physics, Chemistry

8th Grade - University

Hard

Created by

Alain Harvey

Used 31+ times

FREE Resource

50 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

An unstable nucleus loses the most mass if the nucleus emits _____.

an alpha particle

a beta particle

a gamma ray

a neutron

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Magnesium has three naturally occurring isotopes in different percent abundance, Mg–24, Mg–25, and Mg–26. Which of the following isotopes would you expect to have the highest percent abundance?

Mg-24

Mg-25

Mg-26

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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Vanadium comprises two isotopes and has an average atomic mass of 50.9415 amu. V-51 has an abundance of 97%. What is the identity and percent abundance of vanadium’s other isotope? 

V-49, with an abundance of 3.0%      

V-50, with an abundance of 3.0%

V-48, with an abundance of 5.0%

V-47, with an abundance of 6.0%

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which set of atoms is in the correct order of increasing atomic radii?

Rb < Na < Li

Cl < P < S

He < Ne < Ar

F < As < Ba

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which grouping of circles, when considered in order from the top to the bottom, best represents the relative size of the atoms of Li, Na, K and Rb, respectively?

Media Image
Media Image
Media Image
Media Image

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The table gives information about the nucleus of each of the four atoms. How many different elements are represented by the nuclei in the table?

1

2

3

4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An increase in atomic number is related to an increase in atomic mass because:

more electrons are present in the atomic nucleus.

more electrons are orbiting the atomic nucleus.

more protons are present in the atomic nucleus.

more protons are orbiting the atomic nucleus.

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