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.
Answer: PLEASE MARK ME AS BRAINLIST
Explanation:
The cell was first discovered and named by Robert Hooke in 1665. He remarked that it looked strangely similar to cellula or small rooms which monks inhabited, thus deriving the name. However what Hooke actually saw was the dead cell walls of plant cells (cork) as it appeared under the microscope.
the German botanist Schleiden proposed that all plants are made up of plant cells. Thank you.
1.Fertilization occurs when sperm fuses with egg.
2.Bacteria
Just took the test and they were both correct.
