Answer:
Calcium (Ca) and Scandinavium (Sc)
Explanation:
They are all on the same period.
H2O (water) has 2 hydrogen atoms and 1 oxygen atom.
False. It is a fluid as it is in its liquid state possessing qualities of a liquid just that it is viscious
Something made of pure iron<span> is softer </span>than steel<span> because the atoms can slip over one another. If other atoms like carbon are added, they are different from </span>iron<span> atoms and stop the </span>iron<span> atoms from sliding apart so easily. This makes the metal </span>stronger<span> and </span>harder<span>.</span>
