Answer:
Neon
Explanation:
Neon is a monatomic gas. With a complete octet of outer electrons it is highly resistant to removal of any electron, and it cannot accept an electron from anything.
The valence electron does the halogens possess are 7
- Valence electrons are found in the outermost energy level of an atom
- They are involved in the formation of chemical bonding with other atoms.
- The halogens elements are found in group 17 on the periodic table
- The halogens include fluorine, chlorine, bromine, iodine and astatine.
- They have seven valence electrons, so they are extremely reactive as they only need one more to fill their outer shell.
- By octet rule we can say that the electron with 8 outer most shell is full and stable.
Hence the halogens posses 7 valence electron
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Answer:
Here you go.
Explanation:
The activation energy of a chemical reaction is closely related to its rate. Specifically, the higher the activation
The three main types of lipids are triglycerides, steroids and phospholipids
The answer is B because isotopes have the same number of protons and neutrons.