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

Which conversion factor would you use to convert kilometers to miles

Which of the following is a possible set of quantum numbers for an electron? (1, 1, 0, +½) (2, 1, 2, +½) (3, 2, 0, -½) (3, -2, 1, -½)

Members of the alliances before World War I promised to 1. support democracy. 2. establish trade networks. 3. defend each other if any were attacked. 4. provide

What was the one emphasis of the constitution of 1845 Fiscal responsibility Freedom of former slaves Importance of high taxes Increasing state debt PLEASE H

I will mark brainiest, please help!

x^2=4^2+4^2 Pythagorean theorem

Using the coordinates of two points (84,80) and (74,65) determine the slope of the line of best fit

What is the correct definition

33/25 as a percentage

Read Shakespeare's "Sonnet 100.” Where art thou, Muse, that thou forget'st so long To speak of that which gives thee all thy might? Spend'st thou thy fury on so