A controlled investigation is a experiment that is set for example the same rule for everything
Hope this helps
Answer:
true
Explanation:
it's true I have the same course
Answer:
the chemical formula of magnesium hydroxide is Mg(OH)2
2 stands for valency of ca ion
its +2
that it takes two electrons to complete its shell
Answer:
The smallest constituent of an element is termed as an atom. According to Jaiden, an atom comprises two subatomic particles and three prime parts, however, this is incorrect as an atom comprises three subatomic particles and two main parts. The three subatomic particles are the protons, electrons, and neutrons. All these parts are smaller in comparison to an atom, thus, they are considered as subatomic particles.
To be considered as an atom, an atom is needed only electrons and neutrons, like hydrogen exhibit one electron and one proton. On the other hand, the overall charge of the atom is not affected by the presence of neutrons, it is the subatomic particle that only enhances the mass of the atom.
