Determining Protons, Electrons, and Neutrons for Elements

If Hydrogen has an atomic number of 1 and a mass unit of 1 How many protons does it have?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

If Helium has an atomic number of 2 and an atomic mass of 4. How many protons does it have?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

The lithium element has an atomic number of 3 and an atomic mass of 7. How many protons does it have?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

The element Beryllium has an atomic number of 4 and an atomic mass of 9. How many Protons?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

Identify the number of neutrons in an isotope of carbon with a mass number of 14.

• 6

• 7

• 8

• 14

An element has 20 protons, 20 neutrons, and 18 electrons. What is the charge of the ion?

• +2

• 0

• -2

• +1

If an element has an atomic number of 8, how many electrons does it have in a neutral atom?

• 6

• 7

• 8

• 9

An element has 13 protons, 14 neutrons, and 13 electrons. What is its mass number?

• 13

• 14

• 27

• 40

An element has an atomic number of 12 and a mass number of 25. How many neutrons does it have?

• 12

• 13

• 25

• 37

Determine the number of protons in an element with the symbol 'Fe'.

• 24

• 26

• 28

• 30