Atoms (electron shells)

How many electrons does this oxygen atom have?

• 16

• 8

• 24

• 6

Tags

NGSS.MS-PS1-1

How many protons does this oxygen atom have?

• 16

• 8

• 24

• 6

Tags

NGSS.MS-PS1-1

What is the atomic number of Oxygen?

• 16

• 8

• 24

• 6

Tags

NGSS.MS-PS1-1

What is the atomic mass of Oxygen?

• 16

• 8

• 24

• 6

Tags

NGSS.MS-PS1-1

How many electron shells does Oxygen have?

• 16

• 8

• 2

• 6

If both protons and neutrons are found in the nucleus, why is it positive?

• The reason it is positive is because neutrons have a positive charge and protons have a negative charge.

• The reason it is positive is because neutrons have a negative charge and protons have a positive charge

• The reason it is positive is because neutrons have no charge and protons have a positive charge.

• The reason it is positive is because neutrons have no charge and protons have a negative charge

What on a periodic table tells you the number of protons in an atom?

• Atom number

• Atomic number

• Proton number

• Mass number

How many Protons are in Magnesium?

• 24.305

• 24

• 12

• 6

Tags

NGSS.MS-PS1-1

What is the atomic mass of Potassium?

• 8

• 19

• 39

• 39.0983

What is the number of neutrons in Potassium?

• 8

• 19

• 39

• 20

Tags

NGSS.MS-PS1-1