English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

i have a test soon so i gotta know more about them......also the elements and compounds......... thanks.....

2007-04-22 03:37:31 · 3 answers · asked by loser_anonymous_me haha......... 1 in Science & Mathematics Chemistry

3 answers

These are the basic components of matter which determine their identity (e.g. Gold vs. Oxygen) and properties (chemical reactivity and physical properties). The particles are very small.

2007-04-22 03:41:24 · answer #1 · answered by reb1240 7 · 0 0

Okay...

Atoms are the basis of all things made of matter. Air, water, the desk, you, everything.

Elements are pure atoms. Pure carbon, pure oxygen, etc.

Atoms are composed of protons(positive), neutrons(neutral), and electrons(negative).

The protons and neutrons make up the nucleus of the atom. For your purposes, you can think of it as the sun. Electrons would be the planets orbiting the sun.

We'll say that our solar system has 9 planets(we're saying Pluto is a planet!). If it's an atom that has no charge(is not an ion), it would be element 9, Fluorine.

Fluorine by itself has 9 electrons, 9 protons. The charges balance out. That's all you need to concern yourself with.

If fluorine were to lose an electron, its charge would change, it would become a cation, or a positive ion. It would then be +1.

If fluorine gains an electron, it becomes an anion, or a negative ion. Its charge would become -1.

I hope this helps. Good luck on your test.

2007-04-22 10:45:36 · answer #2 · answered by Indiana J 2 · 0 0

http://www.wpbschoolhouse.btinternet.co.uk/page01/ElCpdMix/EleCmdMix.htm#ATOM

try this site..its very helpful for chemistry

2007-04-22 10:42:44 · answer #3 · answered by bunbananabun 3 · 0 0

fedest.com, questions and answers