KAP Unit 1 Atomic Structure

Front

What is the charge of an atom with 7 protons and 9 electrons?

Back

-2

Front

What is the formula for calculating atomic mass?

Back

Atomic mass = protons + neutrons

Front

What is the charge of the nucleus of a helium atom?

Back

+2

Front

Which isotope of oxygen is most abundant if the average atomic mass is 16 amu?

Back

O-16

Front

What is true about the structure of an atom?

Back

The atom is mostly empty space with a dense, positive nucleus.

Front

What particles are found in the nucleus of an atom?

Back

Protons and neutrons.

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

How do isotopes of an element differ?

Back

Isotopes have the same number of protons but different numbers of neutrons.