by Sunday | Dec 9 | Chemistry WAEC
A. Na, Al, P, Cl B. Cl, P, Al, Na C. Na, P, Cl, Al D. Al, Na, P, Cl Correct Answer: Option B B. Cl, P, Al, Na Explanation As you move across a period, first ionization energy increases.
by Sunday | Dec 9 | Chemistry WAEC
A. +2 B. +3 C. +4 D. +5 Correct Answer: Option D D. +5 Explanation Pb(NO3)2= +2+2N+(−2×6)=0 = 2N=10 ⇒ N=+5
by Sunday | Dec 9 | Chemistry WAEC
A. nuclear charge increases while the outermost electrons are drawn closer to the nucleus B. nuclear charge decreases while the outermost electrons are drawn closer to the nucleus C. valence electrons increase across the period while the valence shell remains constant...
by Sunday | Dec 9 | Chemistry WAEC
A. electronegativity B. electron affinity C. ionic radius D. ionization energy Correct Answer: Option C C. ionic radius Explanation The ionic radius decreases across a period but increases along a group.
by Sunday | Dec 9 | Chemistry WAEC
A. the circular path through which electrons revolve round the nucleus B. a region around the nucleus where electrons are most likely to be found C. the path around the nucleus through which electrons move D. the path around the nucleus through which protons move...
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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