Any atom in the first family of the Periodic Table of elements is very unstable.
It would be neutrons.
Brain cell
In a helium atom, you would typically find 2 neutrons. Helium has an atomic number of 2, meaning it has 2 protons in its nucleus which are balanced by 2 neutrons to maintain stability.
tropical rain forest
The nucleus of an atom represents most of an atom's mass.
2 (helium). With 3 neutrons it would be Helium-5 which is the most unstable radioisotope of helium.
Where would you find the most invertebrates
I would expect Li to have a spectrum most nearly like that of the H atom because both atoms have one electron in their outer shell, leading to similar energy level transitions and spectral patterns. Li2, on the other hand, would have a more complex spectrum due to interactions between the two lithium atoms and the resulting molecular orbitals.
Where would you expect to find most of the people of North Africa living
If you are looking for the most chemically reactive atom or element, it is fluorine. As regards which atom is the most active in its nucleus, there are a lot of very unstable radioactive atomic nuclei. Some are so unstable that they can only exist for a small fraction of a second, or, more properly, have an extremely short half-life.
The kind of cell would you expect to find the most mitochondira includes any aerobically active cell.
It would be neutrons.
You would MOST likely find them in a hospitle!
Any of the noble gases (in the right-most column of the periodic table): helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) radon (Rn), and Hydrogen.They all have what is called a stable "octet."See the Related Questions for more information on what the octet rule in chemistry is.
The animals that you would expect to be most active on a cold day are zoo animals. These would include giant pandas, red pandas, flamingos, lions and elephants.
the most likely answer would be zinc
MITOCHONDRIA