Sodium has an atomic number of 11 and an atomic mass of 23. Sodium has ________.
A. 12 electrons and 11 neutrons
B. 12 electrons and 11 protons
C. 12 neutrons and 11 protons
D. 12 protons and 11 electrons
E. 12 protons and 11 neutrons
Answer: C
You might also like to view...
Formation of glucose from noncarbohydrate molecules is called ________.
A. glycolysis B. gluconeogenesis C. glycogenolysis D. ketogenesis
The heart sounds, "lub" and "dup," occur when the atria contract and subsequently when the ventricles contract
Indicate whether the statement is true or false
In the body, Na+ ions behave as if they are nonpenetrating solutes because they are actively transported out of cells
Indicate whether the statement is true or false.
Which of the following best describes the term titin?
A) substance that accounts for elasticity of resting muscle B) repeating unit of striated myofibrils C) storage site for calcium ions D) where thin filaments are anchored E) largely made of myosin molecules