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Chemistry
Basic Terms & Concepts
| Question | Answer |
|---|---|
| all things are_______ | made of matter |
| what determines the different elements? | the number of protons |
| atoms on the outside | valence electrons |
| most of chemistry is the study of______ | electron behavior |
| all elements in the same column have____ | the same number of valance electrons |
| what is special about elements in the same column? | they tend to show similar behavior and chemical reactions |
| alkaline mentals | 1VE, shiny, soft, blow up |
| all elements in the same row or period have_____ | the same number of shells |
| the number of shells increases from | top to bottom |
| atomic mass gets bigger from ___ | left to right |
| why does the atomic mass increase from left to right? | each element gains a proton, neutron, and electron |
| what determines the different isotopes of the same element? | the number of neutrons in the core |
| unstable atoms | fall apart and release ionizing radiation that will kill you; alpha, beta, gamma |
| atoms with the same amount of electrons and protons have___ | no charge |
| more electrons than protons | get a negative charge |
| less electrons than protons | get a positive charge |
| what are charged atoms called | ions |
| positively charged ions | cations |
| negatively charged ions | anions |
| the atomic mass is the ____&_____ masses combined | proton and neutrons |
| atomic mass unit | (u) |
Created by:
kong4