Intro to periodic table

The periodic table is mostly made up of what type of element?

• Metals

• Nonmetals

• Metalloids

Which one of these is not a noble gas?

• He

• Rn

• I

• Kr

What family is Sodium (Na) a part of?

• noble gases

• Halogens

• Alkali Metals

Vertical (up and down) columns in the periodic table are called _________ of elements and have similar properties. 

• groups
• periods

The horizontal (left to right) rows on the periodic table are known as

• periods.
• atoms.
• groups or families.
• valence electrons.

Which is an alkali metal?

• Magnesium

• Iron

• Sodium

Group 1 elements are also known as

• Noble gas

• Halogen

• Alkaline earth metals

• Alkali metals

This class of elements are sometimes called "semiconductors."

• Metals

• Nonmetals

• Metalloids

Carbon has an atomic number of

• 5

• 6

• 12

• 12.01

Tags

NGSS.MS-PS1-1

What group of elements are on the RIGHT side of the staircase?

• metals

• nonmetals

• metalloids