Isotopes

Isotopes of an element have a different number of...

• Protons

• Neutrons

• Electrons

• Mass

Tags

NGSS.HS-PS1-8

Potassium-39 has how many neutrons?

• 19

• 18

• 20

• 21

Tags

NGSS.MS-PS1-1

Nickel-59 has how many neutrons?

• 30

• 31

• 32

• 33

Tags

NGSS.MS-PS1-1

Bromine-80 has how many neutrons?

• 41

• 42

• 44

• 45

Tags

NGSS.MS-PS1-1

76 protons and 114 neutrons

• Osmium-114

• Osmium-76

• Osmium-190

• Osmium-190.23

Tags

NGSS.MS-PS1-1

12 protons and 13 neutrons

• Mg-12

• Mg-13

• Mg-25

• Mg-24.305

Tags

NGSS.MS-PS1-1

9 protons and 9 neutrons

• Fluorine-18

• Fluorine-9

• Fluorine-16

• Fluorine-18.998

Tags

NGSS.MS-PS1-1

How do you calculate mass number?

• Mass x percent

• Protons + Electrons

• Protons + Neutrons

• Neutrons + Protons + Electrons

What is the atomic number of an isotope?

• The number of protons plus neutrons

• The number of protons

• The number of neutrons

• The number of electrons

Which of the following is true about isotopes?

• They have different atomic numbers.

• They have the same number of neutrons.

• They have the same number of protons.

• They are different elements.

Tags

NGSS.HS-PS1-8