Choose the correct statement/s:
A. The atomic size generally increases across a period.
B. The first ionization enthalpy generally increases as we go across a period and decreases as we descend in a group.
C. Effective nuclear charge decreases from left to right in a period.
D. Electronegativity generally increases across a period from left to right and decrease down a group in the periodic table.
Text Solution
Verified by ExpertsD
Since electrons are added in the same shell in a period, therefore effective nuclear charge
increases while moving from left to right across a period, hence the atomic size generally decreases across a period.
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