Periodic Table Elements and Ions

Every element has an unique number of _______________.

• protons

• neutrons

• electrons

• symbols

What are the red elements (those on the left)?

• metals

• nonmetals

• metalloids

What are the blue elements (those on the right)?

• metals

• nonmetals

• metalloids

What are the yellow "stair-step" elements?

• metals

• nonmetals

• metalloids

An atom that has the same number of protons but different numbers of neutrons is an _______________.

• isotope

• ion

• molecule

• awesome atom

In chemistry, a horizontal row of elements in the periodic table

• period

• group

• valence electron

• energy level

The number of Periods on the periodic table is

• 7

• 18

• 12

• 9

An element that is shiny and conducts heat and electricity well

• nonmetal

• metalloid

• metal

• halogen

Tags

NGSS.MS-PS3-3

Elements that have properties of BOTH metals and nonmetals

• metals

• nonmetals

• metalloids

• Halogens

A vertical column of elements in the periodic table; share chemical properties

• group

• period

• valence electron

• energy level