Atoms in Physical Science

Multiple Choice

Which scientist made this discovery about atoms:

Atoms are not solid units. They are made up of smaller, subatomic particles.

• Thomson

• Rutherford

• Bohr

Multiple Choice

Which scientist made this discovery about atoms:

Atoms have a dense, positively charged center called the nucleus.

• Thomson

• Rutherford

• Bohr

Multiple Choice

Which scientist made this discovery about atoms:

Electrons can jump from one orbit-like path to another .

• Thomson

• Rutherford

• Bohr

Multiple Choice

Two protons have a total charge of:

• -2

• 0

• +2

Multiple Choice

Two neutrons have a total charge of:

• -2

• 0

• +2

Multiple Choice

How many protons does this element have in its nucleus?

• 2 protons

• 8 protons

• 5 protons

Multiple Choice

How many protons does this element have in its nucleus?

• 2 protons

• 8 protons

• 5 protons

Multiple Choice

How many protons does this element have in its nucleus?

• 2 protons

• 8 protons

• 5 protons

Multiple Choice

An ion with 17 protons and 18 electrons has an overall charge of:

• -18

• -1

• +1

• +17

Multiple Choice

An ion with 3 protons and 2 electrons has an overall charge of:

• -2

• -1

• +1

• +3

Multiple Choice

An atom with 5 protons, 6 neutrons, and 5 electrons is a:

• negative ion

• neutral atom

• positive atom