APEMAN Practice

How many protons does this element have?

• 1

• 20

• 40

• 60

Tags

NGSS.MS-PS1-1

How many electrons does this element have?

• 25

• 26

• 29

• 30

Tags

NGSS.HS-PS1-1

What is this element's atomic number?

• 10

• 11

• 20

• 20.1797

Tags

NGSS.HS-PS1-1

What is the element's atomic mass?

• 8

• 16

• 30

• 32.066

How many electrons does this element have?

• 20

• 39

• 40

• 40.078

Tags

NGSS.MS-PS1-1

What is this element's atomic number?

• 26

• 30

• 55.845

• 56

Tags

NGSS.MS-PS1-1

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

Tags

NGSS.MS-PS2-3

Subatomic particles with a positive charge

• neutrons

• atomic mass

• protons

• isotopes

Tags

NGSS.HS-PS1-8

Where is most of the mass in an atom located?

• in the nucleus

• in the protons

• in the neutrons

• in the electrons

Tags

NGSS.MS-PS1-1

Which subatomic particles contribute the most to the mass of an atom?

• Protons, Neutrons, Electrons

• Protons only

• Protons and Electrons

• Protons and Neutrons