Answer:
iron (Fe)
Explanation:
Since an atom is electrically neutral, so the atom has 26 electrons also. Ion has 24 electrons, so it has experienced loss of 2 electrons. So, charge on ion is +2. Also, the element with 26 protons (26 atomic number) is iron (Fe).
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Calcium Hydroxide + Sulfuric Acid = Calcium Sulfate + Water
a chemical property of iron is the ability to change it, hammer it, roll it, shape it etc
Magnesium (Mg) has atomic number 12 with electronic configuration :
The valence shell of Mg is 3s which has 2 electrons as shown in above electronic configuration.
Therefore, A = 3 and B =2
