Atomic Structure and Periodic Table Review

Front

What do atoms of elements in the same group of the periodic table share?

Back

Atoms of elements in the same group share the same number of valence electrons.

Front

What part of the periodic table indicates the number of energy levels in the electron cloud?

Back

The period indicates the number of energy levels in the electron cloud.

Front

What happens to the energy of an electron as it moves farther from the nucleus?

Back

The energy of an electron increases as it moves farther from the nucleus.

Front

At room temperature, what state are most metals in?

Back

Most metals are solids at room temperature.

Front

Which noble gas does not have 8 valence electrons?

Back

Helium is the noble gas that does not have 8 valence electrons.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is the significance of valence electrons?

Back

Valence electrons determine how an element reacts chemically with other elements.

Front

What is a period in the periodic table?

Back

A period is a horizontal row in the periodic table that indicates the number of energy levels.

Front

What are the main characteristics of metals?

Back

Metals are typically shiny, good conductors of heat and electricity, and malleable.

Front

What is the difference between atomic mass and atomic number?

Back

Atomic mass is the weighted average mass of an element's isotopes, while atomic number is the number of protons.