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 political theory has been interupted to mean that a president can shield critical information from congress as a result of separation of powers

which geometric object is defined as the set of all points in a plane that are equidistant from the two sides of a given angle

The winter is caused by _____. A. direct sunlight striking Earth B. Indirect sunlight striking Earth C. Earth's closeness to the sun D. Earth's far distance fro

Marie has studied Spanish for three years. Spanish is a _____ for Marie. aptitude interest skill career

Which TWO parts highlight the physiological consequences of war? A) cowed and glum B) with crumps and lice and lack of rum C) he put a bullet through his brai

If 10-2=33 , 37-23=83, 82-4=83, 55-7=32, then 76-45 ????

Which source most likely contains bad evidence for a claim about why basketball is an interesting sport to watch?

Match each exponential function to the description of its percent rate of change. 22% growth 12% decay 2% decay 20% growth 20% decay 22% decay 2% growth 12% gro

Help please & thank u!

How do you determine the length ?