Magnesium :
<span>[Ne] 3s²</span>
Answer A
hope this helps!
Answer:
See below
Step-by-step explanation:
- Hydrogen either reacts with or is formed by reactions with many other elements, so chemists could use it directly to determine their relative masses.
- Hydrogen has the smallest atomic mass, so it was convenient to give H a relative atomic mass of 1 and assign those of other elements as multiples of this number.
The O = 16 scale became the standard in 1903 and carbon-12 was chosen in 1961.
Answer:
a covalent would be the two that are nonmetals
Answer:
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Explanation:
Answer:
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