Chapter 17 Elements and Their Properties

The elements to the left of the zig zag line are classified as ___________________.

• metals

• non-metals

• metalloids

• semi-conductors

All elements in group 17 (7A) belong to the ___________________group/family.

• noble gases

• halogens

• oxygen

• nitrogen

According to the periodic table, which pair of elements has similar chemical properties?

• Na and K

• Ca and Ge

• Se and Br

• Li and He

According to the periodic table, which pair of elements has similar chemical properties?

• Xe and Cs

• Rb and Te

• P and As

• Ga and Ar

Why are noble gases inert?

• They readily form positive ions.

• Their outermost energy level is full.

• They readily form negative ions.

• The outermost level is missing one element.

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The element Iron is located in the __________ block.

• s

• p

• d

• f

The element Tellurium is located in the __________ block.

• s

• p

• d

• f

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Gallium has ______________ valence electrons.

• 1

• 2

• 3

• 4

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The element that is in Group 8A and Period 3 is _______________.

• Francium

• Xenon

• Bromine

• Argon

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Which Alkaline earth metal is located in the s-block and period 3?

• Magnesium

• Calcium

• Sodium

• Strontium

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