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const2013 [10]
4 years ago
9

If a star contains a certain element, it can be determined by studying the star’s

Physics
1 answer:
valentina_108 [34]4 years ago
3 0
A. Emission spectrum
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Sorry i cant tell what you mean but here is my answer for your question i think its right if not just tell me i will give you a new one :)
Alkaline earth metals make up the second group<span> of the periodic table. This family includes the </span>elements<span> beryllium, magnesium, calcium, strontium, barium, and radium (Be, Mg, Ca, Sr, Ba, and Ra, respectively). </span>Group 2 elements<span> share </span>common <span>characteristics. Each metal is naturally occurring and quite reactive.
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True

Explanation:

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2 years ago
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