Using the periodic table

In the modern periodic table, elements are listed according to ___________.

• increasing atomic mass

• increasing atomic number

• increasing density

• the order they were discovered

A column in the periodic table is called a ______.

• element key

• group

• period

• series

What type of elements are made in laboratories and do not occur naturally on Earth?

• metals

• metalloids

• nonmetals

• synthetic

Tags

NGSS.MS-PS1-3

What group of elements are good conductors of heat and electricity?

• metals

• metalloids

• nonmetals

• synthetic

According to the diagram, the melting point of an element increase and then decrease as you read from left to right in each ______.

• element key

• group

• period

• series

Which element would make the best electrical wire?

• copper

• lithium

• zinc

• sodium

Tags

NGSS.HS-PS2-6

Elements tend to decrease in metallic properties ______.

• from top to bottom across a group

• with increasing atomic number

• from left to right across a period

• right to left across a period

Tags

NGSS.HS-PS1-1

Which property is characteristic of most metals?

• dull in appearance

• gas at room temperature

• poor conductor of electricity and heat

• solid at room temperature

Which is a physical property of alkali metals?

• denser than transition elements

• high ionization energy

• little reaction with oxygen

• silvery appearance

What is the most common element in the human body?

• cabon

• hydrogen

• nitrogen

• oxygen