What is the lowest energy level that contains d orbitals?
a. 3
b. 4
c. 2
d. 1

3

Explanation:

3

Elements energy level deals with the elements electron configuration.

Electronic configuration is the electron distribution of an atom or molecule of a chemical element in it's atomic or molecular orbital. Electrons are distributed in the s, p and d orbitals.

Energy level which can also be referred as the election shells is the fixed distance from electrons and the nucleus of an atom of a chemical element.

The lowest energy level that contains d orbitals is 3.

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a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l