Final Exam Review

Front

What is the atomic mass of Neon?

Back

20

Front

What is the electron configuration for Neon?

Back

1s² 2s² 2p⁶

Front

Who proposed the planetary model of the atom?

Back

Bohr

Front

Which noble gas is used in the noble gas notation for elements in the 4th period?

Back

Argon

Front

How many valence electrons does Neon have?

Back

8

Front

What is the definition of atomic mass?

Back

The weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What is electron configuration?

Back

The distribution of electrons in an atom's orbitals.

Front

What is the significance of valence electrons?

Back

Valence electrons determine an atom's chemical properties and reactivity.

Front

What is the role of the nucleus in an atom?

Back

The nucleus contains protons and neutrons and is the center of an atom, providing mass and positive charge.

Front

What is the difference between an atom and an ion?

Back

An atom is neutral, while an ion has a net charge due to the loss or gain of electrons.