7 ..... i think because in CH3 there would be 3 H atoms while in 2CH2 there would be four
Because Na has one too many electron to be stable, while Mg has 2. once they loose those electrons, they will be come ion. loosing one electron will give the ion a 1+ charge, and loosing 2 will create a 2+ charge
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Convert grams to moles and use Avogadro's number 6.022x10tho the 23rd power. Hope this helps
Answer: Jethro Tull is the father of tillage and he wrote a book horse hoeing husbandry and coined the term weed and zero tillage.
Explanation: