We have that the name (not chemical symbol) of the main group element in period 5 and group 3A is
Metalloid boron (B)
From the Question we are told that
The element belongs to
Period 5 and group 3A
Generally
Group 3A of the periodic table includes the metalloid boron (B), aluminum (Al), indium (In), and thallium (Tl) gallium (Ga),
Period 5 is possessed by the metalloid boron (B) of the Group 3A
For more information on this visit
brainly.com/question/13025901?referrer=searchResults
Condensation.
If you think about the condensation you may find on your windows on a frosty morning, this may help you to remember :]
Explanation:
here's the answer to the question
Answer:
the answer is B
Explanation: the number of oxygen atoms is the same before and after the reaction
