Atomic number is less than 11
Answer:
Oxygen
Explanation:
Atomic radius trend
-decreases from left to right
-increases from top to bottom
Tungsten is in period 7, which has a larger atomic radius
Oxygen is in period 2, which is in a lower energy level and is on the right side. Therefore, has a smaller atomic radius.
Answer:
Oxidation or Exothermic reaction
Explanation:
Oxidation means gain of oxygen.
Exothermic means loss of heat to combine 2 elements
Molecular weight of MgSO3 = 104.3682 g/mol
181 g / 104.3682 g/mol
= 1.73 g