Periodic Table

Which group of the periodic table is composed of inert (not reactive)  gases?

• alkali metals

• alkaline earth metals

• halogens

• noble gases

How many elements are in the periodic table?

• 210

• 118

• 98

• 156

Tags

NGSS.MS-PS1-1

The rows found in the periodic table are referred to as

• molecules

• grids

• periods

• groups

A "pure" substance that cannot be separated or broken down into simpler substances

• Compound

• Mixture

• Period

• Element

Tags

NGSS.MS-PS1-4

Most of these elements are gases and are located on the right side of the periodic table

• Metalloids

• Compounds

• Nonmetals

• Metals

The atomic number tells you what?

• number of electrons

• number of protons

• number of neutrons

• both electrons and protons in an atom.

An element's identity is determined by the number of

• electrons.

• protons.

• neutrons.

• valence.

What is the atomic number for an element with three protons?

• 2

• 1

• 3

• 6

The atom of what element is in Period 4, Group 13?

• Na

• Ga

• Al

• K

Which of the following is the abbreviation for the element gold?

• G

• Ld

• Fe

• Au