What is the atomic mass of Neon?

• 10
• 20.18
• 10.18
• 30.18

Tags

NGSS.HS-PS1-1

How many electrons does a Copper atom have?

• 63
• 29
• 92
• 34

Tags

NGSS.MS-PS1-1

How many neutrons does a Hydrogen atom have?

• 1
• 2
• 3
• 0

Tags

NGSS.HS-PS1-8

How many electrons does an atom of Krypton have?

• 36
• 83.80
• 47.80
• 119.80

Tags

NGSS.MS-PS1-1

What is the atomic number for an element with 41 neutrons and a mass number of 80?

• 39
• 41
• 80
• 121

Tags

NGSS.MS-PS1-1

How many protons are present in phosphorus-31

• 15
• 16
• 31
• 46

Tags

NGSS.MS-PS1-1

Found in the nucleus of the atom

• electrons only
• protons only
• neutrons and protons
• neutrons and electrons

Tags

NGSS.HS-PS1-8

How many neutrons does this isotope of lithium have?

• 8
• 3
• 4
• 5

Tags

NGSS.MS-PS1-1

^{What does the 6 represent above the C}

• Symbol 
• Name 
• Mass Number 
• Atomic Number 

Tags

NGSS.MS-PS1-1

Atomic mass - Atomic Number =

• protons
• neutrons
• electrons
• Average Mass