I'm not exactly sure how to find the # of electrons in an element...could anyone explain the procedure to figuring it out?
2006-11-11 10:26:35 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Potassium is number 19. That means it has 19 protons. If it is an atom and not an ion, it has the same nimber of electrons as protons. Since protons are positive + and electrons are negative - , they have to balance. You find the neutrons by subtracting the atomic number from the atomic mass, since both the protons and neutrons weigh 1 and make up the mass. The electrons in the energy levels can move to another atom in compound formation.(ions)
2006-11-11 10:43:44 · answer #1 · answered by science teacher 7 · 1⤊ 0⤋
ok answering the first part. 19 electrons in one potassium atom. Second part. The atomic number (the number they appear on the table) is the number of protons in one atom of the specific element hope that helped if not send me an e-mail at Cold0126@aol.com or this one Fatal_Tears666@yahoo.com
2006-11-11 19:26:23 · answer #2 · answered by Fatal T 1 · 0⤊ 0⤋
19 Electrons. The atomic number of potassium is 19, which is the number of protons in the nucleus. That matches the number of electrons.
2006-11-11 18:34:31 · answer #3 · answered by steve_geo1 7 · 1⤊ 0⤋
its just the atomic number because the atomic number is the number of protons and the number of protons is the number of neutrons. i think potassium is 15.
2006-11-11 18:27:57 · answer #4 · answered by L 4 · 0⤊ 2⤋
19
click here:http://en.wikipedia.org/wiki/Potassium#Notable_characteristics
2006-11-11 18:28:36 · answer #5 · answered by Anonymous · 2⤊ 0⤋