Groups 1,2

Groups 3-13

Groups 1,2, 13-18

Groups 4-8, 13-18

They are abundant in the universe.

They are scarce in the universe.

They are more important than other elements.

They all have similar energy levels.

The number of valence electrons.

The number of protons and electrons.

The number of electron shells occupied.

The amount of energy of the elements in the period.

The block that the elements are in. (s, p, d, f blocks)

The number of electron shells occupied.

The number of inner shell electrons.

The number of valence shell electrons.

Protons or electrons.

Cations or anions.

Metals or non-metals.

Positively or negatively charged.

True

False

Noble gases

Transition metals

Alkaline earth metals

Metalloids

Metals

Non-metals

S block contains all elements from Groups 1-2.

P block contains all elements from Groups 13-18.

D block contains all elements from Groups 3-12.

F block contains all elements that are Lanthanides or Actinides.

$$s^2p^1$$ to $$s^2p^6$$

$$s^1$$ to $$s^2$$

$$d^1s^2$$ to $$d^{10}s^2$$

Subshells are progressively filled.

The group number.

The period number.

The number of valence electrons.

The category the element is in. (Ex: Metalloids, alkali metals, etc.)

Metals' reactivity increases going down a group and decreases across a period.

Metals' reactivity decreases going down a group and increases across a period.

Non-metals' reactivity increases going down a group and decreases across a period.

Non-metals' reactivity decreases going down a group and increases across a period.