Electrons group themselves in pairs in their energy levels. To calculate the number of electrons allowed in any energy level, find the square of the number representing the energy level and multiply it by two. Using this formula, atoms can have two electrons in their first energy level, eight in the second, and eighteen in their third. The quantity of electrons at each level grows as the number of the energy level increases.
Answer:
The answer to your question is letter A
Explanation:
A Molecular compound definition is a compound where the atoms share electrons, which means that these compounds have covalent bonds.
Nonmetals are attached by covalent bonds.
A. This compound has 2 nonmetals so it is an example of a molecular compound.
B. This compound has metal and nonmetals so this is an ionic compound.
C. This compound has metal and nonmetals it is also an ionic compound.
D. Potassium is a metal, oxygen and hydrogen nonmetals, it is an ionic compound.
E. Incorrect
Those are the correct steps, young chemist. Don't be discouraged by an insane answer.
The last answer choice I believe.
It’s Avogadro number/ constant which is the number of atoms in one mole of a substance.
Answer:
a) a space in an atom where an electron is most likely to be found
Explanation:
Atomic orbital is the mathematical function which describes wave-like behavior of the electrons present in the atom.
It is used to calculate probability of finding the electron of the atom in any region around nucleus of the atom. Atomic orbital is the physical region or a three dimensional space where the probability of finding the electron is more than 90% which also means that the space where an electron is most likely to be found. They are boundless space and have definite energy.
Option A best describes atomic orbital.