C17 Word Scramble
I S O O I C R C C M P
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
| Question | Answer |
| brownian motion | the perpetual random movement of microscopic particles suspended in a fluid medium. |
| periodic table | a chart that lists elements by atomic number and by electron arrangements, so that elements with similar chemical properties are in the same column. |
| neutrons | an electrically neutral particle that is one of the two kinds of particles found in the nucleus of an atom |
| atom | the smallest particle of an element that can be identified with that element. consists of protons and neutrons in a nucleus surrounded by electrons |
| isotope | a form of an element having a particular number of neutrons in the nuclei of its atoms. different isotopes of a particular element have the same atomic number but different atomic mass numbers. |
| atomic number | number of protons in the nucleus of an atom |
| protons | a positively charged particle that is one of the two kinds of particles found in the nucleus of an atom |
| element | a substance made of only one kind of atom. examples of elements are carbon, hydrogen, oxygen, and nitrogen. |
| compound | a chemical substance made of atoms of two or more different elements combined in a fixed proportion |
| molecule | the smallest particle of a substance consisting of two or more atoms of the same or different elements bonded together. |
| ion | an atom (or group of atoms bound together) with a net electric charge, which is due to the loss or gain of electrons. |
| nucleus | the positively charged center of an atom, which contains protons and neutrons and has almost all the mass of the entire atom but only a tiny fraction of the volume. |
| nucleons | the principle building block of the nucleus; a neutron or a proton. |
| shell model of the atom | a model in which the electrons of an atom are pictured as grouped in concentric shells around the nucleus. |
| chemical formula | a description that uses numbers and symbols of elements to describe the proportions of elements in a compound or reaction. |
| plasma | a fourth phase of matter, in addition to solid, liquid, and gas. in the plasma phase, which exists mainly at high temperature, matter consists of positively charged ions and free electrons. |
Created by:
knesel
Popular Physics sets