Atomic Number, Atomic Mass and Isotope Practice

Atomic Number, Atomic Mass and Isotope Practice

9th - 12th Grade

10 Qs

quiz-placeholder

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Atomic Number, Atomic Mass and Isotope Practice

Atomic Number, Atomic Mass and Isotope Practice

Assessment

Quiz

Chemistry

9th - 12th Grade

Practice Problem

Easy

NGSS
MS-PS1-1

Standards-aligned

Created by

Jess Racine

Used 7+ times

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10 questions

Show all answers

1.

DROPDOWN QUESTION

15 mins • 1 pt

Media Image

The most common isiopte of gallium has a mass number ​ of ​ ​ (a)  

70
31
69

Tags

NGSS.MS-PS1-1

2.

MATCH QUESTION

15 mins • 5 pts

Match the following elements to the correct description

has 17 protons in its nucleus

carbon, C

most common isotope has a mass of 24

fluorine, F

noble gas

chlorine, Cl

has 9 electrons in a neutral atom

magnesium, Mg

most comon isotope has 6 neutrons

neon, Ne

Tags

NGSS.MS-PS1-1

3.

LABELLING QUESTION

15 mins • 5 pts

Label the parts of the atom. Not all labels will be used!

a
b
c
d
e
nucelus
compound
proton
electron
neutron
electron cloud

Tags

NGSS.MS-PS1-1

4.

MATCH QUESTION

15 mins • 5 pts

Match the following descriptions to the best term

protons & neutrons

if you change the number of protons you get a different...

mass

these are in the nucleus

element

the mass of the atom is found here

neutrons

an isotope has the same number of protons but a different number of...

nucleus

if you change the number of neutrons you get a different...

Tags

NGSS.MS-PS1-1

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

The most common isotope of sodium has how many neutrons?

23

11

2, 8, 1

12

Tags

NGSS.MS-PS1-1

6.

LABELLING QUESTION

15 mins • 3 pts

Label the following isotope symbol. Not all labels will be used!

a
b
c

Atomic number

Element Symbol

Mass Number

number of neutron

Tags

NGSS.MS-PS1-1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A certain atom of oxygen contains 8 protons, 8 neutrons, & 8 electrons. Another atom of unknown identity contains 9 protons. Which of the following MUST be true about this unidentified atom?

It has 9 neutrons in its nucleus.

It is an isotope of oxygen.

Its atomic mass is a decimal number.

It cannot be an atom of oxygen.

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