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

A student added an enzyme to a flask containing a substrate and placed the mixture over a flame. She observed the reaction for a few minutes when she noticed th

The equation of a circle is (x−2)^2+(y−16)^2=169 . What is the circle's radius?

Evaluate the determinant for the following matrix:

Which scenarios involve individuals who should seek medical advice? Check all that apply. Joel has abnormal drainage from his ears. Drew is seeing flashes of

When a patch of land is cleared in a tropical rainforest, the vegetation is often burned to enrich the soil with nutrients from the burned plant material. What

why is "sea-scented beach" an example of both alliteration ans of assonance

Authors use rhetorical devices to keep the action moving forward keep the reader's attention create longer writings create complex vocabulary Answer is

Kendra is very polite to her teacher and her mother. when she speaks to her younger brother, she tends to be rude and condescending. she is much nicer to him wh

According to the scatterplot below, which statement is correct?

what steps you can take to help protect your computer from a virus