Chemistry Chapter 4 Test Review

What is atomic number?

• Number of protons in an atoms 
• Number of neutrons in an atom
• Mass of an atom
• Charge on an atom

Which subatomic particles are found in the nucleus of an atom?

• Protons and Electrons
• Protons and Neutrons
• Neutrons and Electrons
• Protons, Neutrons and Electrons

Tags

NGSS.HS-PS1-8

NGSS.HS-PS1-4

What electrical charge does a proton have?

• +1
• 0
• -1
• +2

What mass does a neutron have?

• 1 amu

• 0 amu

• -1 amu

• +2 amu

The total number of protons and neutrons in an atom is called the...

• Atomic number
• Proton number
• Mass number
• Weight number

Tags

NGSS.HS-PS1-8

The _________ of an element equals the number of protons in an atom of that element.

• mass number

• atomic weight

• atomic number

• isotopes

The mass number of an element that has 18 protons, 18 electrons, and 19 neutrons is _____.

• 12.5

• 13

• 25

• 37

Tags

NGSS.MS-PS1-1

Which particle is negatively charged?

• proton
• atom
• neutron
• electron

What is the correct number of subatomic particles of a phosphorous atom with a mass of 31?

• p# - 15, n# = 15, e# = 15

• p# - 15, n# = 16, e# = 15

• p# - 15, n# = 15, e# = 16

• p# - 16, n# = 15, e# = 15

Tags

NGSS.MS-PS1-1

What is the mass number of a nickel atom with 28 protons, 31 neutrons, and 28 electrons?

• 31

• 28

• 59

• 87