Multiple Choice
Choose the INCORRECT statement about the transition elements.
A) The atomic radii increases to the right across the periodic table.
B) The first ionization energy is about the same as the Group 2 (IIA) elements.
C) The lanthanide contraction is responsible for the second and third series of transition elements being very similar in atomic radii.
D) The lanthanide contraction is due to the f electrons not screening as well as other electrons.
E) The electron configuration of cobalt and copper are anomalous.
Correct Answer:

Verified
Correct Answer:
Verified
Q61: The main source of titanium is:<br>A)seawater<br>B)rutile ore,TiO<sub>2
Q62: Choose the INCORRECT statement.<br>A)The inner transition elements
Q63: Use the couples Cr<sup>2+</sup>(aq)| Cr<sup>3+</sup>(aq),-0.424 V and
Q64: Choose the INCORRECT statement.<br>A)Most representative element bonding
Q65: Choose the INCORRECT statement about the most
Q67: Gold does not react with either nitric
Q68: Galvanized steel is iron coated with cadmium
Q69: Zinc oxide,a useful fungicide,can be prepared from
Q70: Lanthanides are very difficult to separate from
Q71: Choose the INCORRECT statement.<br>A)Iron's main use is