The Periodicity of the Properties of Elements Is Chiefly Due

question 10

Multiple Choice

The periodicity of the properties of elements is chiefly due to

• A)the numbers of electrons in the atoms of the elements.
• B)the distribution of electrons in the atoms of the elements.
• C)the numbers of neutrons and electrons in the atoms of the elements.
• D)both the numbers of electrons in the atoms of the elements and the distribution of electrons in the atoms of the elements.

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Definitions:

Sex Chromosomes

Chromosomes that determine the genetic sex of an organism, typically denoted as XX for females and XY for males in many species.

Gonads

The primary reproductive organs in animals, which in males are the testes and in females are the ovaries, responsible for producing gametes and hormones.

Sexual Development

The process of physical and emotional changes that occur as a person matures sexually, including puberty and sexual identity formation.

Sex Glands

Organs that produce sex hormones and gametes; for males, this refers to the testes, and for females, the ovaries.