The Periodic Table

As you move from left to right on the periodic table, what generally happens to the boiling point of elements?

• It decreases, then increases.
• It increases, then decreases.
• It increases.
• It decreases.

Why are metals good conductors of electricity?

• Their outer electrons are held very loosely.
• Their protons are held very tightly.
• Their neutrons are held very tightly.
• Their outer electrons are held very tightly.

As you move from top to bottom on the periodic table, what generally happens to the metallic character of elements?

• It increases.
• It decreases.
• It remains constant.
• It decreases, then increases.

As you move from left to right on the periodic table, what generally happens to the metallic character of elements?

• It decreases, then increases.
• It remains constant.
• It increases.
• It decreases.

Which two elements would have the most similar atomic radii?

• Beryllium and Magnesium
• Aluminum and Carbon
• Boron and Silicon
• Sodium and Beryllium

How many valence electrons does krypton have?

• 8
• 36
• 10
• 6

How many valence electrons does silicon have?

• 14
• 4
• 28
• 2

In which energy level is the outer electron in rubidium located?

• 5
• 37
• 1
• 2

Which element in the second column is likely to be the most reactive?

• stronium
• magnesium
• calcium
• barium

Which of the following elements has the same number of valence electrons as aluminum?

• magnesium (Mg)
• boron (B)
• silicon (Si)
• zinc (Zn)