Trends & Periodic Table

Front

As you move down the periodic table, atoms get bigger. This is because ____________.

Back

The atoms have more energy levels.

Front

Which element has 2 valence electrons?

Back

magnesium (Mg)

Front

The non-metals are located ____________.

Back

to the right of the stair step.

Front

The metals are located ____________.

Back

to the left of the stair step.

Front

What does Hund's rule state?

Back

Single electrons with the same spin must occupy each energy orbital before additional electrons with opposite spins can occupy the same orbitals.

Front

What is the periodic trend for atomic radius as you move across a period?

Back

Atomic radius decreases from left to right across a period.

Front

What is the periodic trend for ionization energy as you move down a group?

Back

Ionization energy decreases as you move down a group.

Front

What is electronegativity?

Back

Electronegativity is the ability of an atom to attract electrons in a chemical bond.

Front

Which group of elements is known as the noble gases?

Back

Group 18 elements, such as helium (He), neon (Ne), and argon (Ar).

Front

What is the significance of the stair-step line on the periodic table?

Back

It separates metals from non-metals.