Question

question 16 :: multiple choice question
how many protons does $_{17}^{35}cl$ have?
18
35
17
8.5
question 17 :: multiple choice question
under which of the following circumstances will an attractive force be produced?
when two neutral objects are brought near each other
when a negatively charged object is brought near a positively charged object
when two negatively charged objects are brought near each other
when two positively charged objects are brought near each other

Explanation:

Step1: Proton number is atomic number.

Chlorine's atomic number is 17.

Step2: Opposite charges attract.

Positive and negative charges attract.

Answer:

Question 16: C. 17
Question 17: when a negatively charged object is brought near a positively charged object