Periodic table of elements trends and electron config.

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

All elements in the same row have the same number of shells.

• True

• False

• Sometimes

Valence means......

• inside

• outside

• full

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

What does the atomic number tell you?

• Number of Protons
• Number of Neutrons
• Sum of protons and neutrons

The modern periodic table of elements is arranged by 

• Number of neutrons
• State of matter
• Atomic number
• Atomic Mass

What subatomic particle is found outside of the nucleus?

• Isotope
• Electron
• Neutron
• Mass

Use your periodic table to find which element has 5 protons.

• Lithium

• Calcium

• Boron

• Neon