Which of the following is chemically inert (unreactive)? select one:

(a) carbon (atomic number 6)
(b) sodium (atomic number 11)
(c) neon (atomic number 10)
(d) oxygen (atomic number 8)

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.

Adepositional also feature that forms where a stream enters a lake or an ocean is a

Why does a plastic bottle that is sealed at a high altitude change it’s shape when taken to lower altitude