The ionization energy is affected by the following factors except
distance of the outermost electron(s) from the nucleus
size of the positive nuclear charge
ability to attract shared electron(s)
screening effect of the inner electron(s)
Correct answer is C
These 3 factors affect the ionization energy:
The oxidation number of X in \(XO_{4}^{3-}\) is
+1
+3
+4
+5
Correct answer is D
\(XO_{4}^{3+}\) = \(X + (-2\times 4) = -3\)
\(X = -3+8 = +5\)
Which of the following substances does not have van der Waals' forces?
Copper
Graphite
Neon
Iodine crystals
Correct answer is A
No explanation has been provided for this answer.
Which of the following metals has the strongest metallic bond?
\(_{13}Al\)
\(_{19}K\)
\(_{12}Mg\)
\(_{11}Na\)
Correct answer is A
Aluminium has the highest magnitude of charge of +3, hence it will form a stronger metallic bond.
Na, Al, P, Cl
Cl, P, Al, Na
Na, P, Cl, Al
Al, Na, P, Cl
Correct answer is B
As you move across a period, first ionization energy increases.