4. Which of the following statements explains the cause of lanthanide contraction?
A. All lanthanides and actinides are radioactive
B. Protons exhibit a stronger pull on outer f orbitals
C. The d orbitals in lanthanides have unpair electrons
D. The d orbitals in actinides have paired electrons
Answers: 2
Chemistry, 21.06.2019 23:00
The drawing represents the movement of particles in a substance. what changes of state can this substance undergo
Answers: 1
Chemistry, 22.06.2019 00:00
Which of the following methods uses the decay of atomic particles in an object to find its exact age? a. fossil dating b. geologic dating c. radioactive dating d. relative dating
Answers: 1
Chemistry, 22.06.2019 04:20
Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.
Answers: 1
Chemistry, 22.06.2019 14:30
The three types is stress that act on earths rocks are compression, tension, and
Answers: 1
4. Which of the following statements explains the cause of lanthanide contraction?
A. All lanthanid...
Mathematics, 07.04.2021 04:40
Mathematics, 07.04.2021 04:40
Mathematics, 07.04.2021 04:40
Mathematics, 07.04.2021 04:40
Mathematics, 07.04.2021 04:40
Chemistry, 07.04.2021 04:40
History, 07.04.2021 04:40
History, 07.04.2021 04:40
Advanced Placement (AP), 07.04.2021 04:40