Quizs: Saavas Topic 8: Atoms and the Periodic Table

The __ elements are in the upper left of the periodic table, while the __ elements are found in the lower right.

• Heaviest, Lightest

• Gas, Solid

• Lightest, Heaviest

• Nonmetal, Metal

A conductor of electricity

• base

• acid

• both

• neither

Which one feels slippery

• a base

• an acid

• a neutral

• none of the above

Which of the following is an element and a molecule?

• O

• H₂O

• H₂

• C₆H₁₂O₆

The horizontal (side to side) rows in the Periodic Table are called:

• Groups

• Periods

• Families

• Elements

A Sodium atom has 11 protons and 10 electrons. What is its charge?

• +11

• +1

• -1

• -10

A substance that is corrosive to metals

• base

• acid

• both

• neither

A nucleus of an atom contains what two parts?

• electrons and protons

• protons and neutrons

• neutrons and electrons

• groups and periods

Which problem is balanced?
(Check ALL answers)

• PbO₂ + 2H₂
• SO₂ + H₂0 --> H₂SO₄
• 2Na + 2H₂O --> 2NaOH + H₂

What charge does an atoms nucleus have?

• Positive

• Neutral

• Negative

• Either positive or negative