Chemistry Quiz

Chemistry Quiz

12th Grade

28 Qs

quiz-placeholder

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Chemistry Quiz

Chemistry Quiz

Assessment

Quiz

Chemistry

12th Grade

Easy

Created by

zizo -

Used 4+ times

FREE Resource

28 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 10 pts

Which one of the following contributes to the charge, but does NOT contribute significantly to the mass of an atom?

electrons

nuclei

photons

neutrons

protons

2.

MULTIPLE CHOICE QUESTION

3 mins • 10 pts

Consider the atoms of Cu-65 and Zn-65. Both of these atoms have the same

number of electrons

number of ions

number of neutrons

mass number

number of protons

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Uranium exists in nature in the form of several isotopes; the different isotopes have different

atomic numbers

charges

numbers of electrons

numbers of neutrons

numbers of protons

4.

MULTIPLE CHOICE QUESTION

3 mins • 10 pts

Consider the atoms of Co and Co. Both of these atoms have the same

number of neutrons and electrons

number of neutrons and ions

mass number

number of photons

number of protons and electrons

5.

MULTIPLE CHOICE QUESTION

3 mins • 10 pts

A neutral iodine atom has an atomic mass number = 131. Which description below fits this atom?

39 protons, 78 neutrons, 39 electrons

53 protons, 78 neutrons, 53 electrons

52 protons, 79 neutrons, 54 electrons

53 protons, 131 neutrons, 53 electrons

54 protons, 131 neutrons, 54 electrons

6.

MULTIPLE CHOICE QUESTION

3 mins • 10 pts

A naturally occurring element consists of three isotopes. The data for the isotopes are: isotope 1: 146.9672 u, 64.792% isotope 2: 148.9638 u, 26.117% isotope 3: 149.9592 u, 9.0910%. What is the average atomic mass of this naturally occurring element?

49.254 u

147.76 u

148.63 u

148.67 u

147.88 u

7.

MULTIPLE CHOICE QUESTION

3 mins • 10 pts

All of the following are alkali metals except

Sr

Na

Fr

Cs

Rb

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