Subatomic Particles

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

An atom with 19 protons, and 19 electrons and a mass of 39 has how many neutrons?

• 19
• 39
• 20
• 58

Tags

NGSS.MS-PS1-1

If an ion of ²⁷Al³⁺ has 13 protons, how may electrons does it have?

(a)  

Tags

NGSS.MS-PS1-1

How many neutrons does a Bromine-80 ion have?

• 80

• 45

• 35

• 36

Tags

NGSS.MS-PS1-1

An ion has 50 protons, 62 neutrons, and a charge of +4, choose its symbol.

• ¹¹²Sm⁴⁺

• ⁶²Sm⁴⁺

• ⁶²Sn⁴⁺

• ¹¹²Sn⁴⁺

Tags

NGSS.HS-PS1-8

How many neutrons does Helium-4 have?

• 4

• 2

• 8

• 0

Tags

NGSS.MS-PS1-1

An atom of Uranium-238 has 92 protons and 146 neutrons, what is its atomic mass?

• 146

• 54

• 92

• 238

Tags

NGSS.MS-PS1-1

How many electrons does an atom of ¹¹⁰Sn have?

(a)  

Tags

NGSS.MS-PS1-1

An atom that has gained or lost electrons is called ...

• a winner
• an isotope
• an ion
• a loser