Parts of the Atom

What charge does a proton have?

• positive

• negative

• neutral

What charge does a neutron have?

• positive

• negative

• neutral

What charge does an electron have?

• positive

• negative

• neutral

There are equal numbers of ___ and ___ in an atom (if it's neutral)

• protons and neutrons

• protons and electrons

• neutrons and electrons

Tags

NGSS.MS-PS1-1

What two particles are in the nucleus of an atom?

• protons and electrons

• electrons and neutrons

• protons and neutrons

Tags

NGSS.MS-PS1-1

How many protons does an atom of Sodium (Na) have?

• 12

• 11

• 23

Tags

NGSS.MS-PS1-1

The atomic number is the number of ____ in the nucleus. It's the element's "identification"!

• electrons

• neutrons

• protons

Tags

NGSS.MS-PS1-1

What particle(s) make up the mass number?

• electrons

• neutrons

• protons

• protons and neutrons

Tags

NGSS.MS-PS1-1

What is the mass number of Phosphorous (P)?

• 15

• 30

• 31

• 16

Tags

NGSS.MS-PS1-1

If an atom's atomic number is 2 and has a mass of 4, how many neutrons does the atom have?

• 2

• 4

• 6

• 0

Tags

NGSS.MS-PS1-1