Periodic Table Trends

As you move left to right on a row or period what happens?

• Atomic number increases by 1

• Electrons decrease

• Number of shells decrease

• Nothing

What happens to the number of shells as you move down a group?

• They decrease by 1

• They increase by 1

• Nothing

The first energy shell can hold ______ electrons.

• 2

• 8

• 18

Valence means......

• inside

• outside

• full

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Elements in the same group or column have the same ...

• # of valence electrons

• # of shells

• # of protons

• Mass Number

Rows on the periodic table are called ___________.

• Periods

• Sentences

• Fences

The columns in the periodic table are called ___________.

• Towers

• Herds

• Groups

Elements in the same group have __________

• Similar Properties

• Same number of shells

• Similar Mass

Which of these element is the least metallic?

• Potassium (K)
• Carbon (C)
• Sulfur (S)
• Neon (Ne)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The number at the bottom of each square on the periodic table is the ...

• atomic number
• atomic mass
• chemical symbol
• element name

Tags

NGSS.MS-PS1-1