Magma is made of molten rock. Melted of molten rock. Answer is rock.
Answer:
Neils Bohr determined that electrons inhabit distinct energy levels.
Explanation:
Answer:
for number one its the first one
Explanation:
Well, elements are arranged based on a number of factors.
Left to right, elements are arranged based on atomic number. The atomic numbers of the elements are increasing by 1 as you move from left to right.
Top to bottom is based on increasing atomic radius. As you move from top to bottom, each succeeding element in a group gets an additional electron shell, increasing the atomic radius as you move down.
Alloys are used much more than pure metals because they are generally stronger and less likely to react with air or water.