Alchemy Quiz 09

What can the atomic number tell you about a neutral atom? (Check all that apply.)

• number of protons

• number of neutrons

• number of electrons

• mass number

• atomic weight

How do you find the mass of an individual atom?

• The number of neutrons minus the number of protons.

• The number of protons plus the number of electrons.

• The number of neutrons minus the number of electrons.

• The number of protons plus the number of neutrons.

How do you find the number of neutrons?

• The mass number minus the number of protons.

• The number of protons plus the number of electrons.

• The number of protons minus the number of electrons.

• The number of protons minus the average atomic mass.

• The number of protons plus the average atomic mass.

If you have a sample of atoms and each atom has twelve protons in its nucleus, which element is it? Name the element (one word, spelled correctly).

Tags

NGSS.MS-PS1-1

What element does the atomic model represent? Name the element (one word, spelled correctly).

Tags

NGSS.MS-PS1-1

The number of protons in a sodium atom is:

• 11

• 12

• 22

• 23

• 34

A neutral atom of chromium (Cr) has 24 protons and 28 neutrons. How many electrons will it have?

• 4

• 12

• 24

• 28

• 52

What is the atomic number of this atom?

• 5

• 6

• 11

• 16

Tags

NGSS.MS-PS1-1

What is the total number of neutrons in an atom of an element with an atomic number of 18 and a mass number of 40?

• 18

• 22

• 40

• 58

Tags

NGSS.MS-PS1-1

What are the atomic number and atomic mass of this atom?

• number 5,
  mass 10

• number 5,
  mass 11

• number 6,
  mass 11

• number 6,
  mass 17

Tags

NGSS.MS-PS1-1