Isotope Opener

Isotopes are atoms of the same element with different ____________.

• Number of Neutrons & Mass Number

• Number of Protons & Atomic Number

• Number of Protons, Neutrons, and Electrons

• Number of Electrons & Mass Number

What is the ATOMIC MASS of the isotope Carbon-14?

• 14

• 6

• 12

• 20

Isotopes of the same element have the same number of ________ but a different number of _______.

• protons, neutrons

• neutrons, protons

• protons, electrons

• electrons, neutrons

An atom of phosphorus has an atomic number of 15 and a mass number of 31. How many neutrons does it contain?

• 15

• 16

• 31

• 46

A chlorine isotope that has 8 neutrons would have an atomic mass of​ ​ (a)   .

• 25
• 8
• 35
• 9
• 17
• 18

What is the name of a boron atom with 3 neutrons?​ ​ (a)  

• boron-3
• boron
• boron-8
• boron-2
• boron-5

What is the name of this iso​tope?​ ​ (a)  

• oxygen-18
• oxygen
• oxygen-10
• oxygen-8
• oxygen-16
• oxygen-2
• neon-10

Tags

NGSS.MS-PS1-1

An atom that has 9 protons and 9 neutrons would have what name?

• Fluorine-18

• Fluorine-9

• Fluorine-16

• Fluorine-18.998

Tags

NGSS.MS-PS1-1

Which isotope of Lithium contains 5 neutrons?

• Lithium-6

• Lithium-7

• Lithium-8

• They have the same # of neutrons

Here is a picture of Beryllium - 9. What is wrong with this model?

• The number of electrons

• The number of protons

• The number of neutrons

• The atom is correct.

Tags

NGSS.MS-PS1-1