Oxygen has an atomic number of 8 and an atomic mass of 16. How many valence electrons does it have?

A. 6
B. 2
C. 16
D. 8
E. 4


Answer: A

Anatomy & Physiology

You might also like to view...

Transverse tubules

A) transmit muscle impulses into the cell interior. B) connect actin and myosin. C) store sodium ions for the action potential at the cell surface. D) store calcium ions.

Anatomy & Physiology

Which of the following is a stimulus for erythropoiesis?

a) reduced availability of oxygen b) reduced carbon dioxide availability c) leukemia d) high hematocrit

Anatomy & Physiology

Which vertebrae are the largest?

A. cervical B. thoracic C. lumbar D. sacral

Anatomy & Physiology

Male androgens ________.

A. stimulate erythropoiesis B. stimulate bone growth C. stimulate protein synthesis and muscle growth D. All of the choices are correct.

Anatomy & Physiology