![Biology](/tpl/images/cats/biologiya.png)
Element Rand Element Q have the same number of valence electrons. These elements both have similar chemical behavior,
but Element Rhas fewer energy levels than Element Q.
Element R 12p. Element Q 20p
Which statement best describes the positions of the two elements in the periodic table?
![answer](/tpl/images/cats/otvet.png)
Answers: 2
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Element Rand Element Q have the same number of valence electrons. These elements both have similar c...
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