Periodic Table

What is the factor that determines the chemical properties of an element?

• The number of electron shells

• The number of electrons in the innermost shell

• The number of electrons in the outermost shell

• The number of neutrons in the nucleus

The vertical (up and down) columns in the Periodic Table are called

• groups

• towers

• periods

• atomic numbers

All of the elements in a period have the same number of _____.

• energy levels

• valence electrons

• protons

• electrons

Atomic number represents which subatomic particle?

• electrons

• protons

• neutrons

Which pair of elements has the most similar properties?

• Be and B

• O and S

• H and Hg

• Na and F

Elements in a ..................have similar chemical properties.  

• period
• group
• row

How many valence electrons are in an atom of Silicon, Si?

• 3

• 4

• 14

• 28

How many energy levels are in an atom of Cesium, Cs?

• 55

• 133

• 1

• 6

What element is in period 3 group 18, 8A?

• Aluminum

• Potassium

• Argon

• Neon

Which element is located in group 13, 3A and period 4?

• Boron

• Silicon

• Beryllium

• Gallium