Games
2
20
Easy

What Element has the Symbol Sm?

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62

Sm

Samarium
38

Se

Strontium
19

K

Potassium
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Samarium
15
21
Medium

This is a halogen element, lustrous solid, which volatilizing at ordinary temperatures into a blue-violet gas with an irritating odor. Ample amounts of this element are required by the human body for the proper function of the thyroid gland.

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53

I

Iodine
35

Br

Bromine
85

At

Astatine
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Iodine
20
20
Hard

This element is classified as a lanthanide and it is the most abundant of the rare-earth elements of the earth’s crust. It is the most reactive of the rare-earth metals and is used as a catalyst to refine petroleum.

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58

Ce

Cerium
68

Eu

Erbium
71

Lu

Lutetium
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Cerium

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