Chemistry midterm Review Monday

Front

What is the negatively charged particle found outside the nucleus?

Back

Electron

Front

Convert 5900 K to °C.

Back

5627 °C

Front

What are the subatomic particles found on the outermost shell responsible for the atom's reactivity?

Back

Valence electrons

Front

Why are most atomic masses on the Periodic Table decimal numbers?

Back

Atomic masses are a weighted average of the naturally occurring isotopes.

Front

What is the overall charge of an ion that has 9 protons, 11 neutrons, and 10 electrons?

Back

-1

Front

Define an ion.

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is the charge of a proton?

Back

+1

Front

What is the charge of a neutron?

Back

0 (neutral)

Front

What is the charge of an electron?

Back

-1

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.