Atomic Structure Part 1

Front

What is the ground state of an electron?

Back

When electrons occupy the lowest energy levels available to them.

Front

What is NOT part of Dalton's Atomic Theory?

Back

Atoms can be created or destroyed in chemical reactions.

Front

What is the atomic number of an element with 9 protons?

Back

9

Front

What is the charge of all atoms?

Back

Neutral, with the number of protons equaling the number of electrons.

Front

What do isotopes of an element have in common?

Back

They have the same atomic number.

Front

Define atomic number.

Back

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

Front

What is an isotope?

Back

Atoms of the same element that have different numbers of neutrons.

Front

What is the significance of the nucleus in an atom?

Back

It contains protons and neutrons, making up most of the atom's mass.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.