A new element has the symbol #Y# and seven valence electrons. What is the maximum number of hydrogen atoms that can bond to it?

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A new element has the symbol #Y# and seven valence electrons. What is the maximum number of hydrogen atoms that can bond to it?

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Answer 1 · 2017-12-18T15:18:29

7

Explanation:

A hydrogen atom has 1 outer electron, #1s^1#. That means that it needs one electron to complete the s orbital (it's outer shell).

Since #Y# has 7 valence electrons, this means that it can complete the outer shell of 7 hydrogen atoms. So a maximum of #7# hydrogen atoms can bond to #Y#

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A new element has the symbol #Y# and seven valence electrons. What is the maximum number of hydrogen atoms that can bond to it?

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