2006-10-12 06:10:10 · 8 answers · asked by Lisa 1 in Science & Mathematics ➔ Astronomy & Space
# of protons in the nucleus
# of valence electrons
atomic mass
other stuff
2006-10-12 06:51:28 · answer #1 · answered by stefen35594 2 · 0⤊ 1⤋
The content of the nucleus. Specifically, elements are defined by the number of protons. An atom with 1 proton is Hydrogen, with 2 protons is Helium, 3 is Lithium, etc. This is just the definition of an element.
2006-10-12 13:12:56 · answer #2 · answered by Anonymous · 0⤊ 0⤋
An element is a substance that is made entirely from one type of atom. For example, the element hydrogen is made from atoms containing a single proton and a single electron. If you change the number of protons an atom has, you change the type of element it is.
Each element has a different number of neutrons and protons within the nucleus, as well as having different weights and ionic charges (positive, neutral, or negative).
2006-10-12 13:22:48 · answer #3 · answered by Krynne 4 · 0⤊ 0⤋
The number of protons in the nucleus of the atoms. Why? Now that's a good question.
2006-10-12 13:33:35 · answer #4 · answered by Da Judge 3 · 0⤊ 0⤋
The number of protons in the nucleus.
2006-10-12 13:11:50 · answer #5 · answered by x 7 · 1⤊ 0⤋
The number of protons
2006-10-12 16:54:40 · answer #6 · answered by Dr. J. 6 · 0⤊ 0⤋
In a dual filament bulb one element produces tail light or driving light and the other is for turn signal to brake light. .................. not the correct answer? See the periodic table of elements.
2006-10-12 13:36:37 · answer #7 · answered by MRR 1 · 0⤊ 1⤋
atoms...duh
2006-10-12 13:11:42 · answer #8 · answered by Rae 4 · 0⤊ 2⤋