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science
science words
| Question | Answer |
|---|---|
| regons in an atom where electrons are found are called ____ levels | energy |
| the smallest particle of an element that still retains the properties of that element | atom |
| the number of protons in an atom's nucleus is the atomic_____ | number |
| an organized table of all known alements is a __________ table | perodic |
| negatively cherged elements are ___ | electrons |
| the number of protons and neutrons in a atoms nucleus is the _ number | mass |
| an atom of the same element that has different numbers of neutrons is an | isotope |
| neutrally charged subatomic particles are called __ | neutrons |
| the positively charged center of an atom is called the | nucleus |
| posativeley charged particles are known as______ | prootons |