Staar Review Atoms

This subatomic particle in the nucleus that is positively charged

• Neutron

• Electron

• Proton

• Quark

The chart that shows the arrangement of elements in order by their atomic number

• Electron Cloud
• Periodic Table
• amu
• Atomic Mass

If the sum of the protons in an atom is 3, how many electrons will it have?

• 3

• 6

• 9

• 1

The vertical columns on the periodic table #1-8(0)

• Groups

• Periods

• Subatomic Particles

• Rows

The majority of elements are classified as ________ and are located on the left side/middle of the periodic table.

• Metals
• Noble Gases
• Nonmetals
• Metalloids

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

• Compound
• Mixture
• Period
• Element

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

• Metalloids

• Compounds

• Non-metals

• Metals

A substance composed of two or more elements chemically bonded together.  Examples are H₂O and CO₂.

• Element
• Compound
• Electron Cloud
• Metalloid

Tags

NGSS.MS-PS1-1

The horizontal rows on the periodic table #1-7.

• Periods
• Element
• Atomic Number
• Group

These elements are found along the zig-zag line on the periodic table.

• Metal
• Group
• Metalloid
• Nonmetal