REV: Periodic table Part 1

More than 2/3 of the elements on the periodic table are classified as ____

• solids

• liquids

• metals

• nonmetals

The group of elements that are extremely reactive is the _____.

• lanthanides

• transition metals

• alkali metals

• alkaline earth metals

The group of nonmetals which are unreactive and gases at room temperature is _________.          

• halogens

• noble gases

• transition metals

• alkali metals

What do groups/families in the periodic table have in common?

• The number of energy levels occupied by electrons.

• The exact same characteristics.

• The number of valence electrons.

• None in any of the choices.

An element with two valence electrons is?

• alkali metals

• alkaline earth metals

• halogen

• transition element 

Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs) and Francium (Fr) are in the same column in the periodic table. Why are these elements in the same column in the periodic table?

• They have similar properties.

• They have atoms of the same size. 

• They have the same number of protons.

• They have the same number of neutrons.

A proton is....

• A negatively charged subatomic particle
• A positively charged subatomic particle
• A neutrally charged subatomic particle
• The only subatomic particle located in the nucleus

What is the organizational system or chart for elements?

• Atomic weight

• Families

• Periodic table

• Atomic number

What do you call the horizontal row of elements in a periodic table of elements?

• Group

• Family

• Period

• Column

How many groups or families and periods does a Periodical Table have?

• There are 17 groups or families and 7 periods.

• There are 18 groups or families and 7 periods.

• There are 7 groups or families and 18 periods.

• There are 18 groups or families and 6 periods