Atomic Structure

A neutron has a ________ charge

• Positive

• Negative

• Neutral

Answer explanation

Think....

Neutron = Neutral = 0

A electron has a ________ charge

• Positive

• Negative

• Neutral

Answer explanation

Think....

Electron --> Negative -->  - 

Tags

NGSS.MS-PS2-3

The atomic number (the element's ID) is = to the # of

• Protons

• Electrons

Answer explanation

The atomic number tells science lots of things about a particular element.

MOST IMPORTANTLY, it tells us the # of protons inside the atom.

If Hydrogen's atomic # is 1, then how many protons does it have?

• 1

• 2

Answer explanation

The atomic # tells us how many protons are in the atom. 

If Oxygen's number is 8, then how many protons does it have?

• 16

• 8

Answer explanation

The atomic # tells us how many protons are inside the atom. 

If Carbon's atomic # is 6, then how many protons does it have?

• 3

• 6

Answer explanation

The atomic # = the # of protons.

Atoms like to be stable ("calm").

In order to do that, an atoms likes to have the SAME number of protons and electrons.

So, if an atoms has 12 protons, how many electrons does it have?

• 10

• 12

• 14

Answer explanation

# of protons = # of electrons

Atoms like to be stable ("calm").

In order to do that, an atoms likes to have the SAME number of protons and electrons.

So, if an atoms has 2 protons, how many 2 does it have?

• 10

• 5

• 2

Answer explanation

# of protons = # of electrons

RANDOM QUESTION: Which one could you live without?

Pizza or Ice Cream?

• Pizza

• Ice Cream

The atomic mass of an atom =

the total # of protons + total # of neutrons.

So, if an atom has 12 protons and 13 neutrons, then what's it's mass?

• 12 + 13 = 25

• 12 - 13 = -1

Answer explanation

Atomic Mass = P + N

Tags

NGSS.MS-PS1-1