Atomic Structure

Referring to the table, what is the relative mass of a proton?

• 10
• 1
• 0.1
• 0.01

Tags

NGSS.MS-PS1-1

Referring to the table, what is the relative mass of an electron?

• 5
• 1
• 0.5
• 0.0005

Referring to the table, what is the relative charge of an electron?

• +1
• 0
• -1
• -0.5

Tags

NGSS.MS-PS2-3

Referring to the table, what is the relative charge of a neutron?

• +1
• 0
• -1
• -0.5

Referring to the table, what is the relative charge of a proton?

• +1
• 0
• -1
• -0.5

Tags

NGSS.MS-PS1-1

The number in the upper corner of an element tile (7 for nitrogen) is called _____

• the proton number
• the atomic number
• the electron number
• the mass number

Tags

NGSS.MS-PS1-1

For a given element, the atomic number indicates the number of _____

• protons in the nucleus
• neutron in the nucleus
• electrons in the atom
• nucleons in the atom

Tags

NGSS.MS-PS1-1

If an atom contains exactly three protons, then it's an atom of _____

• lithium
• gold
• nitrogen
• carbon

Tags

NGSS.MS-PS1-1

For an atom to be electrically neutral, it must contain the same number of _____

• protons and neutrons
• neutrons and electrons
• protons and electrons
• nucleons and electrons

Tags

NGSS.MS-PS1-1

The sum of the number of protons and the number of neutrons is called the _____

• atomic number
• mass number
• isotope number
• average weight

Tags

NGSS.MS-PS1-1