The Cobalt(III) Ion, Co³⁺, Has How Many 3d Electrons

question 4

Multiple Choice

The cobalt(III) ion, Co³⁺, has how many 3d electrons

• A) 0
• B) 7
• C) 6
• D) 5
• E) 4

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Definitions:

Genes

Units of heredity made up of DNA. They act as instructions to make molecules called proteins, influencing individual traits that are inherited from parents.

Hypothalamus

A region of the brain below the thalamus that coordinates both the autonomic nervous system and the activity of the pituitary, controlling body temperature, thirst, hunger, and other homeostatic systems, and is involved in sleep and emotional activity.

Pituitary

A small endocrine gland located at the base of the brain which produces hormones regulating growth, metabolism, and the functioning of other endocrine glands.

Gonads

The primary reproductive organs that produce gametes (e.g., ovaries in females and testes in males) and sex hormones.