Atomic Structure and Isotopes Worksheet

Atomic Structure and Isotopes Worksheet

10th Grade

78 Qs

quiz-placeholder

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Atomic Structure and Isotopes Worksheet

Atomic Structure and Isotopes Worksheet

Assessment

Quiz

Science

10th Grade

Hard

Created by

Lauren Reitano

FREE Resource

78 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which two particles each have a mass approximately equal to one atomic mass unit?

positron and electron

positron and neutron

proton and electron

proton and neutron

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which description of the atom is based on the results of the gold foil experiment in the early 1900s?

Atoms are small, dense, indivisible spheres

Atoms are composed of protons, electrons, and neutrons

Atoms have small, dense, positively charged nuclei.

Atoms have electrons with wavelike properties.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

On the Periodic Table, the number of protons in an atom of an element is indicated by its

atomic mass

atomic number

selected oxidation states

number of valence electrons

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Every chlorine atom has

7 electrons

17 neutrons

a mass number of 35

an atomic number of 17

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The table below gives the atomic mass and the abundance of the two naturally occurring isotopes of copper. Which numerical setup can be used to calculate the atomic mass of the element copper?

(62.93 u)(30.85) + (64.93 u)(69.15)

(62.93 u)(69.15) + (64.93 u)(30.85)

(62.93 u)(0.3085) + (64.93 u)(0.6915)

(62.93 u)(0.6915) + (64.93 u)(0.3085)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A potassium atom has a mass number of 37. What is the number of neutrons in this atom?

15

18

22

37

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which phrase describes the different isotopes of an element?

same number of electrons and a different number of protons

same number of protons and a different number of electrons

same number of protons and a different number of neutrons

same number of neutrons and a different number of protons

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