Quiz Bowl - Science Elements

Question 1

A great "crisis" named for this element occured when cyanobacteria produced more of it killing off many archaeans.

Accepted Answer

oxygen

Question 2

This halogen is red-orange and liquid at STP.

Accepted Answer

bromine

Question 3

This noble gas accounts for slightly less than 1% of the Earth's atmphere.

Accepted Answer

nitrogen

Question 4

Sodium are lithium are

Accepted Answer

akali metals

Question 5

Special relativity has been invoked to explain why this metal is liquid at standard conditions.

Accepted Answer

mercury

Question 6

This element has an atomic number 43 and is the lightest element that has non stable isotopes.

Accepted Answer

technetium

Question 7

The yellowcake form of this element is used to turn into nuclear fuel.

Accepted Answer

uranium

Question 8

The most abundant metal in the universe.

Accepted Answer

hydrogen

Question 9

This accounts for about 78% of the Earth's atmphere.

Accepted Answer

nitrogen

Question 10

The sulfate of this alkaline earth metal makes up Epsom salts.

Accepted Answer

magnesium

Question 11

In the Haber process, this element reacts with hydrogen to form ammonia.

Accepted Answer

nitrogen

Question 12

This alkali metal is used in rechargeable batteries has atomic number 3.

Accepted Answer

lithium

Question 13

This element's dioxide forms quartz.

Accepted Answer

silicon

Question 14

This alkaline earth metal supports bone growth.

Accepted Answer

calcium

Questions 14