HW: 2.2&2.3 Wayground

Which scientist is credited with first organizing the periodic table?

• Einstein

• Mendeleev

• Dalton

• Bohr

Columns on the periodic table are called:

• Periods

• Families

• Groups

• Rows

Rows on the periodic table are called:

• Periods

• Families

• Groups

• Columns

Which group is known as the most reactive metals with water?

• Alkaline Earth Metals

• Transition Metals

• Alkali Metals

• Noble Gases

What determines an element’s chemical properties?

• Its atomic mass

• Its valence electrons

• Its density

• Its color

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Which group’s reactivity increases as you go down the column?

• Noble Gases

• Alkali Metals

• Halogens

• Transition Metals

Which of the following is a metalloid?

• Carbon

• Silicon

• Calcium

• Neon

Which group contains elements like magnesium and calcium?

• Group 1

• Group 2

• Group 17

• Group 18

Transition metals are good conductors of:

• Light

• Heat and electricity

• Sound

• Magnetism

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Which property makes metalloids useful in electronics?

• They are ductile

• They are semiconductors

• They are gases

• They are very reactive