Based on what basis the elements had been arranged
in the modern periodic table?
A - The incr...
Based on what basis the elements had been arranged
in the modern periodic table?
A - The increase in the atomic mass
B β The increase in the atomic number
C - The classification of elements into metals and
nonmetals
D - The classification of elements according to their
Answers: 3
Chemistry, 22.06.2019 03:30
The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for clβ 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.
Answers: 2
Chemistry, 23.06.2019 10:30
Describe the hybridization of each carbon and nitrogen atom in each of the following structures
Answers: 1
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