Question

question 12 of 25
what is the atomic number of arsenic (as)?
a. 15
b. 33
c. 75
d. 4

Explanation:

To determine the atomic number of arsenic (As), we refer to the periodic table. The atomic number of an element is the number of protons in its nucleus, and for arsenic, this number is 33.

Answer:

B. 33