Atomic Math Practice

What is the atomic number?

• the number of protons

• the number of protons and neutrons

• the number of neutrons

• the number of protons and electrons

What is true about a neutral atom?

• The number of protons equal the number of neutrons

• The number of protons equal the number of electrons

• The number of neutrons equal the number of electrons

• The number of protons, neutrons, and electrons are all different

What does the 1.0079 stand for?

• atomic number

• hydrogen

• atomic mass

• mass number

Tags

NGSS.MS-PS1-1

How many electrons does the first shell hold?

• 1

• 2

• 4

• 8

The number of protons plus neutrons.

• Mass number

• Mass Weight

• Atomic number

• Atomic weight

How many protons does nitrogen have?

• 14.01

• 14

• 7

• 15

The following element key shows how many protons?

• 16

• 15.999

• Oxygen

• 8

Tags

NGSS.MS-PS1-1

all matter is made of what 

• energy 

• atoms 

• electrons 

• compounds 

Tags

NGSS.MS-PS1-1

what is the number of neutrons in Cobalt Co?

• 58

• 31

• 27

• 32

What is the atomic mass of an element?

• The total number of protons and neutrons

• The total number of protons and electrons

• The total number of neutrons

• The total number of electrons