Answer:
ti teg lliw uoy dna snoitseuq rewsna tsilniarb tnaw uoy fi
Explanation:
mirror
Answer:
O silicon (Si)
Explanation:
-Valence electrons are electrons of the outermost shell which can participate in chemical bonding. ... -As in silicon, four electrons are present in the outermost shell, so silicon has Four valence electrons.
Identification, communication, regulation of solute exchange through the membrane, and isolation of the cytoplasm from the external environment.
