EkybooachelbyL EkybooachelbyL

04-03-2017
Biology

contestada

The atomic mass of potassium is 39. if its atomic number is 19, how many neutron are there

Respuesta :

04-03-2017

19. The atomic number indicates how many neutrons there are, and the atomic mass tells us how many protons and neutrons are present within the nucleus of an atom.

Answer Link

Otras preguntas

Which of the following is not true about Galileo? A. He was such a brilliant mathematician that he became a professor of mathematics at the age of 25. B. He dev

The Enrollment Act of Conscription, during the Civil War, caused the New York City_____ riots. A) Military B) Draft C) economic

Can you name these four types of clouds? ITEMBANK: cirrocumulus- cirrus cloud -cumulonimbus cloud -cumulus cloud

Raphael paid $477 for a camera during a 25% off sale. What was the camera's regular price

Describe 5 ways to represent a function?

Which traits are characteristic of single-celled organisms? Choose all answers that are correct. A. cannot carry out their own life processes B. divide in two t

How did enslaved africans maintain their sense of self esteem?

All of the following are characteristics of Mayan society except

What is 16.403 round to the nearest tenth?

Which statement best describes a benefit of civic participation