Which of the Following Elements Is in Period 4

question 150

Multiple Choice

Which of the following elements is in Period 4?

• A) Zr
• B) Ca
• C) Bi
• D) He
• E) Ag

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Definitions:

Active Volcano

A volcano that has erupted in the recent past and is considered likely to do so again.

Iron-Nickel Meteorite

A type of meteorite consisting mainly of iron and nickel, typically formed from the core of ancient asteroids.

Continental Crust

The type of Earth’s crust that underlies the continents and the continental shelves; average granitic composition, but includes diverse types of material.

Oceanic Crust

the part of the Earth's crust that underlies the oceans, thinner and denser than continental crust.