Ions, Isotopes, Atoms Practice

How many protons and electrons does the ion N^3- have?

• 7, 7

• 7, 9

• 10, 7

• 7, 10

Tags

NGSS.MS-PS1-1

What is the number of neutrons?

• 34
• 79
• 45
• 35

Tags

NGSS.MS-PS1-1

If you have 10 protons and 9 neutrons, what would the mass number be?

• 19
• 9
• 10
• 1

Tags

NGSS.MS-PS1-1

What do these isotopes of carbon all have in common?

• neutrons & mass number
• atomic number and neutrons
• atomic number and electrons
• protons, atomic number, and mass number

Tags

NGSS.MS-PS1-1

What is an example of an Isotope

• Cu
• C02
• H2O
• C-14

Tags

NGSS.HS-PS1-8

What element is this?  What is the mass number of this atom?

• sodium, 23
• magnesium, 23
• magnesium, 12
• sodium, 11

Tags

NGSS.MS-PS1-1

 Copper occurs naturally as Cu-63 and Cu-65. Which isotope is more abundant?

• Cu-63
• Cu-65

which atom has  4 neutrons?

• Li-6
• Li-7
• Li-8
• they have the same # of neutrons

Tags

NGSS.MS-PS1-1

Although carbon's three isotopes are carbon-12, carbon-13, and carbon-14, its average atomic mass is 12.01 because

• Carbon-12 is the heaviest isotope
• Carbon-12 is the most useful to humans
• Carbon-12 is the most common isotope

Tags

NGSS.MS-PS1-1

A neutral atom would become an ion that has a charge of 2+ by 

• Losing two protons
• Losing two neutrons
• Losing two electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2