radomes.openskiesproject.org
Shanae771 Shanae771
  • 04-06-2015
  • Chemistry
Answered

What is the total number of protons in the nucleus of an atom of potassium-42?

(1) 15 (3) 39

(2) 19 (4) 42

Verified Answer :

stephenlee0912 stephenlee0912
  • 04-06-2015

The answer is (2) 19. The number of protons of any isotope of a given element is just its atomic number (because the number of protons identifies the element). Potassium's atomic number is 19.

Answer Link

Related Questions

Oftentimes the president appears on television handing out awards to American citizens Which of the presidents many roles BEST fits this responsibility a head o
Which of the following colors suggests neutrality green brown red gray
The following were inventions during the Han dynasty except a writing c acupuncture b a Chinese dictionary d treebark paper
Mention any three steps which were taken by the president of chile when led to a military coup
what is 5 radical 2 squared
You earn 750 per hour to help your uncle in his shop you earn 3375 write and solve an equation to find how many hours you worked
which one is smallest to largest 0537
Add and simplify 916 12
A warning sign that a credit counseling agency may not be legitimate is when they promise to a work with creditors to come up with a reasonable payment plan for
Root word and suffix for reliable