5) Check all the following boxes that are true about electrons A) The number of electrons must be the same as the number of protons.
B) Changing the number can make atoms unstable.
C) They are mostly located in the nucleus (center) of the atom.
D) Electrons must be removed from the outer rings before they can be removed from
the inner rings.
E) The inner shell has a maximum number of 2 electrons
Other:

Explanation:

A isnt true bc there can be isotopes

B: Yes that's true

C: C is false: only protons and neutron live in the nucleus

D that is true: we can see that with ions

E that is true

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.

the answer is minerals.