Atomic Math

How many protons does nitrogen have?

• 14.01
• 14
• 7
• 15

What is the mass number of an element that has 8 protons and 8 neutrons?

• 8
• 0
• 16
• 64

What is the most common isotope of boron?

• boron-5
• boron-10
• boron-11
• boron-13

How many neutrons are in lithium-7?

• 7
• 6.94
• 3
• 4

How many electrons are in helium-4?

• 2
• 4
• 3
• 0

In an electrically neutral atom, the number of electrons is equal to the...

• atomic number
• mass number
• average atomic mass
• most common isotope

What is the mass number of an aluminum isotope that contains 13 neutrons?

• 13
• 26
• 27
• 26.98

How many neutrons are in carbon-14?

• 14
• 6
• 7
• 8

What is the atomic # of an element that has 4 protons, 6 electrons, and 5 neutrons?

• 4
• 5
• 6
• 9

Tags

NGSS.MS-PS1-1

How many electrons does Neon have?

• 10
• 20
• 20.18
• 0

Tags

NGSS.MS-PS1-1