jgsdjfkklfj7025 jgsdjfkklfj7025

01-06-2018
Chemistry

contestada

Potassium has a mass number of 40 and an atomic number of 19. how many protons does it have?

Respuesta :

01-06-2018

19. The atomic number is the same as protons and electrons unless it have a - or a + charge the electrons are going to change

Answer Link

Otras preguntas

Kay- 8.75 per hour Kay- HOURS PER WEEK 37.5 Amanda 10.25 per hour Amanda- HOURS WORKED PER WEEK 30.5 How much does Kay earn in a week? How Much Does Amanda ea

1.) Which of the following is not true of gases? A. They are fluid. B. They are low density. C. They are usually warm. D. They are highly compressible. 2.)

How do i find the y-intercept of an eqaution that passes throught two points

Who Beleived in Informed Citizens Federalists or Anti-Federalists?please provide a source

Bill is h cm tall. Siena is 4cm taller than bill.Write down an expression in terms of h for siena's height in cm

What are Hamlet's contemplations perhaps a foretelling of? A. His contemplations foretells the death of his uncle B. His contemplations are perhaps a foretelli

if x2 +8x-4=x2+8, then 2x-3+?

How many extraneous solutions exist for the logarithmic equation below if it is solved in the most efficient way possible?log_(2)[log_(2)(\sqrt(4x))]=1?

What is the y-intercept of a line that has a slope of 1 over 4 and passes through point (8, 3)? 1 3 5 11

There is a 50% chance a coin lands on heads and a 50% chance the coin lands on tails what is the probability that the coin lands on heads three times in a row ?