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 :

KT0729 KT0729
  • 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

Evaluate 5/-1 x -2/3 - 4/-3 writing your answer in simplest form
A large 50 Kg rock is being pushed with a force of 150 N. The force of friction is 7ON.
how do you think the amount of atmospheric CO2 has changed in the last 550 million years, and how has this affected Earth's climate? Explain your answer.
what is the remainder and quotient of 90 8765 when divided by 97​
What is a formula for the nth term of the given sequence? 1,4, 7...
please help me with this! if you know the answer, would you please explain it!
Which option is equivalent to log 7 - log 2? A. log 5 7 B. log O C. log 9 OD. log 72​
As frequency increases in an electromagnetic wave, its photon energy decreases. A. True B. False
The table shows the price of bagels at two different stores: Store Price Bagels Bagel Stop $10.00 35 bagels Yummy Bagels $5.00 18 bagels Yummy Bagels sells bage
The myth attempts to explain ?