Counting Subatomic Particles Practice

How many neutrons would Fe-56 have?

• 56
• 26
• 30
• 33

Tags

NGSS.MS-PS1-1

How many protons does P-30 have?

• 30
• 16
• 12
• 15

Tags

NGSS.MS-PS1-1

What element has 42 protons?

• Ca
• Mo
• Zr
• Po

Tags

NGSS.HS-PS1-1

If an atom of nickel has a charge of +3, how many electrons does the atom have?

• 28
• 25
• 26
• 31

Tags

NGSS.MS-PS1-1

If an atom of oxygen has a charge of -2, how many electrons does the atom have?

• 18
• 6
• 8
• 10

Tags

NGSS.MS-PS1-1

How many protons does Pb-209 have?

• 127
• 209
• 82
• 291

Tags

NGSS.MS-PS1-1

What is the mass number of an atom of gold with 117 neutrons?

• 117
• 196
• 196.97
• 197

How many protons does He have?

• 4
• 2
• 6
• 0

Tags

NGSS.MS-PS1-1

The top number in this isotope notation is

• the mass number
• the atomic number
• the atomic mass
• the neutron number

Tags

NGSS.MS-PS1-1

The bottom number in this isotope notation is

• the mass number
• the atomic number
• the atomic mass
• the neutron number

Tags

NGSS.MS-PS1-1