Who Found That the Atomic Number Was Equal to the Number

question 55

Multiple Choice

Who found that the atomic number was equal to the number of protons in the nucleus and to the number of electrons outside the nucleus in a neutral atom?

• A) Meyer
• B) Newlands
• C) Moseley
• D) Mendeleev
• E) Thomson

---

Definitions:

Distal Pulse

A pulse taken far from the trunk of the body, such as at the wrist or foot, indicating the flow of blood to these areas.

Venipuncture

A medical procedure that involves puncturing a vein with a needle to draw blood or to give medications.

Arterial Blood Gas

A test measuring the levels of oxygen, carbon dioxide, and acidity (pH) in arterial blood, used to assess lung function and gas exchange.

Heparin

An anticoagulant medication used to prevent and treat blood clots by thinning the blood, commonly used in medical settings.