Which of the following is not a subatomic particle? electron neutron nucleus proton

Nucleus

Explanation:

Electrons, neutrons, and protons are all subatomic particles and made part of an atom. On the other hand, the nucleus is a part of an atom and is constituted by protons and neutrons.

- aluminum and copper chloride.

- the chloride ion to separate the aluminum from the oxygen so that the aluminum can react with the copper ions (and the water molecules).

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.