Physics atoms Word Scramble
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| Question | Answer |
| the attraction between protons abd electrons can cause atoms to combine | Bonding |
| electrical neutral | neutron |
| second lightest element | helium |
| atoms are much older than the material the compose. True or False? | true |
| the most common type of molecule | H20 |
| in 1827 he studied pollen grains under a microscope. who is he? | Robert brown |
| smallest particle of a substance is a | molecule |
| this man said matter was made of atoms. | John Dalton |
| the evidence that atoms exist is called | Brownian motion |
| the 5 elements that make up living things: | oxygen, carbon, hydrogen, nitrogen, calcium |
| atoms of the same element having different numbers of neutrons are | isotopes |
| the number of protons in the nucleus is called | the atomic number |
| the toal number of nucleons in the nucleus of an atom | atomic mass unit |
| electrons have______ | mass |
| the arrangement in of _______ in the shells dictate the atom's physical and chemical properties | electrons |
| central region of an atom | nucleus |
| atoms move fastest in | gas |
| like charges | repel |
| building blocks of matter | an atom |
| atoms are the smallest particles of an | element |
| a substance made of only 1 kind of atom is a | element |
| forms when electrons are transfered between atoms | Ionic bonds |
| the lightest element is | hydrogen |
| some atoms are old as | the universe |
| a substance that is made of atoms of different elements in a fixed proportion is a/an | compound |
| water and carbon dioxide are made of | molecules |
| atoms are mostly empty space. true or false? | true |
| the nucleus contains most of the ____ of an atom | mass |
| forms when two atoms share electrons | covalent bonds |
| electrons orbit the | nucleus |
| unlike charges | attract |
Created by:
mkriegshauser
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