Question

question 7
the periodic table consists of ______ periods.
question 8
which element has 53 protons in its nucleus?
iodine
tellurium
bromine

Explanation:

Question 7

Step1: Recall Periodic Table structure

The modern periodic table has 7 horizontal rows called periods.

The number of protons in an element's nucleus is its atomic number. Iodine has an atomic number of 53, meaning it has 53 protons. Tellurium has atomic number 52, and Bromine has atomic number 35.

Answer:

7

Question 8