6_Periodic Table

In the periodic table, elements are arranged by

• increasing atomic mass

• decreasing atomic number

• increasing atomic number

• electron shell

Each column in the periodic table is called a 

• period
• group
• cluster
• unit

Which of the following is an alkaline earth metal?

• sodium

• strontium

• fluorine

• neon

Which group of the periodic table is composed of inert (not reactive) gases because they have full s and p orbitals?

• alkali metals

• alkaline earth metals

• halogens

• noble gases

Elements which are shiny and conduct electricity and heat are called

• metal

• nonmetal

• metalloid

• nonexistent

Which element is not a metal?

• Li

• U

• Al

• H

The atoms along the staircase are called 

• metals
• nonmetals
• metalloids
• noble gases

Tags

NGSS.MS-PS1-1

Which is a halogen?

• Helium
• Chlorine
• Oxygen
• Neptune

Which is an alkali metal?

• Magnesium
• Iron
• Sodium
• Europium

A horizontal row of elements in the periodic table.

• column
• group
• period