How Many Protons (P) And Neutrons (N) Are In An Atom Of Calcium-46? (a) 20 P, 26 N (b) 26 P, 20 N (c) 46 P, 20 N (d) 20 P, 46 N

Ali Khalili asked Dec 6, 2023

477,325 views

1 vote

How Many Protons (P) And Neutrons (N) Are In An Atom Of Calcium-46?

(a) 20 P, 26 N
(b) 26 P, 20 N
(c) 46 P, 20 N
(d) 20 P, 46 N

Ali Khalili asked Dec 6, 2023

2.8k points

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

21 votes

Answer:

Step-by-step explanation:

Mass number = No of protons + No of neutrons

Atomic number = No of protons

Mass number = 46 (from question)

Atomic number of Ca = 20

therefore:

46 = 20 + no of neutrons

no of neutrons = 26

2.9k points

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers