Review Periodic Table Flashcard

Front

What group of the periodic table is composed of inert (not reactive) gases?

Back

Noble gases

Front

How do you find the number of neutrons in an atom?

Back

Atomic Mass - Atomic Number

Front

What is true about sodium (Na) and potassium (K) based on their locations in the periodic table?

Back

Sodium has fewer energy levels than potassium.

Front

Which characteristic is not a periodic trend?

Back

Number of elements in a group

Front

Which element is the least reactive?

Back

S

Front

What are alkali metals?

Back

The group of elements in the first column of the periodic table, highly reactive, especially with water.

Front

What is the atomic number?

Back

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

Front

What is ionization energy?

Back

The energy required to remove an electron from an atom in its gaseous state.

Front

What is electronegativity?

Back

A measure of the tendency of an atom to attract a bonding pair of electrons.

Front

What is the trend of atomic radius in the periodic table?

Back

Atomic radius increases down a group and decreases across a period.