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

Given: y = 3 x − 4 . For what value of x does y equal zero?

The graph of p = 400 and the graph of p = 50s - 200 intersect at the point (12,400). If the equation p = 50s - 200 represents the profit, p, based on s sales, w

Jonathan is building an outdoor staircase for his deck. He uses 8 screws for every 2 steps. If there are 14 steps, how many screws does Jonathan need?

Read the excerpt from the Supreme Court decision Tinker v. Des Moines, a case in which students filed a lawsuit against the public school system in Des Moines,

please someone do this ill gove u brainliest answer

What is the square root of nine

The simplest rationalisation factor of root 3-root 5

How did economics contribute to shifting attitudes toward slavery in Georgia between 1750 and 1860?

Please help as soon as possible!!!!!!!!!

Based on this map, identify a political impact of Napoleon's conquests in Europe.