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

Can someone help me please?

a spring tide can occur at what day and month?

PLEASE PLEASE HELP!! Fast

which best describes the relationship between caesar and octavius

1. According to David M. O’Brien, what is one effect of the Warren Court on American society? 2. According to Kermit Hall, what is one criticism leveled agains

What diseases and disorders can be prevented or lessened through regular cardiorespiratory exercise?

Jacob lives in an apartment. He has to tie an 85-meter long rope at the distance of 90 meter from the building to its roof. What is the height of the building?

Over time, color variation in a population of butterflies declined. The number of color variations within the population was twelve in 1985. In 2005, the number

Help on 9???????????????plz

What Ancient Greek belief does this passage most clearly reflect?