Periodic Law

How did Mendeleev arrange the elements?

• alphabetically by element name

• density

• atomic number

• atomic mass

Which group of the periodic table is composed of inert (unreactive) gases?

• alkali metals

• alkaline earth metals

• halogens

• noble gases

Elements which are shiny, conduct electricity and heat are called:

• metal

• nonmetal

• metalloid

• radioactive

Which element is not a metal?

• Hg

• Rh

• Al

• B

What are the elements along the dark line on the periodic table called?

• metals

• nonmetals

• metalloids

• noble gases

What is on the left side of the dark line on the periodic table?

• Non-Metals

• Metals

• Metalloids

• Anions

Which is a halogen?

• Helium

• Chlorine

• Oxygen

• Niobium

Tags

NGSS.HS-PS1-1

Which is an alkali metal?

• Magnesium

• Iron

• Sodium

• Europium

Tags

NGSS.HS-PS1-1

A horizontal row of elements in the periodic table is called:

• column

• group

• period

• family

A vertical column in the periodic table is called:

• row

• group

• period

• table