calcium
calcium
potassium (K)
Mg (magnesium)
Mg (magnesium)
Chlorine and Magnesium are in the same horizontal row or period, so Magnesium.
calcium
Calcium shares the most characteristics with magnesium.Both belongs to 2nd group of alkaline earth metals.
Sillicon
chlorine (Cl)
potassium (K)
Na would be the most different from Magnesium.
They are Unicellular.
Sr
Magnesium.
POTASSIUM: Potassium is a chemical element. It has the symbol K and atomic number 19. MAGNESIUM: Magnesium is a chemical element with the symbol Mg, the atomic number 12, and an atomic mass of 24.31. Magnesium is the ninth most abundant element in the Earth by mass. It constitutes about 2% of the Earth's crust by mass, and it is the third most abundant element dissolved in seawater.
No. while magnesium is a very active element is is far from being the most active.
magnesium