Determining Protons, Electrons, and Neutrons for Elements

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

• 1

• 0

• 2

• 3

Tags

NGSS.MS-PS1-1

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

• 4

• 5

• 6

Tags

NGSS.MS-PS1-1

Beryllium has an atomic number of 4 and an atomic mass of 9. How many protons does it have?

• 4

• 5

• 9

• 13

What is a positive particle in an atom?

• Protons

• Neutrons

• Electrons

• nucleus

What is the negative particle in an atom?

• proton

• neutron

• electron

• nucleus

What particles are found in the nucleus?

• Protons

• Protons and electrons

• Protons and neutrons

• Electrons

How do you calculate the number of protons in an element?

• Look at the atomic number-it is the same number

• look at the atomic mass-it is the same number

• Atomic mass-Atomic number

• Ugh, now we have to do math in science?!?

How do you calculate the number of neutrons?

• Look at the atomic number-it is the same number

• Look at the atomic mass-it is the same number

• atomic mass-atomic number

• Neutrons too?!? Oh good grief!

Carbon has an atomic number of 6 and an atomic mass of 12. How many neutrons does it have?

• 6

• 12

• 18

• 5

Tags

NGSS.MS-PS1-1

Calcium has an atomic number of 20 and an atomic mass of 40. How many protons does Calcium have

• 20

• 40

• 60

• 80