Chemistry, 15.12.2020 23:10 darius12318
2. Moving down any group of the periodic table... (highlight the answer)
1. Atomic number and atomic mass decrease
2. Atomic number and atomic mass increase
3. Atomic number increases but atomic mass decreases
4. Atomic number decreases but atomic mass increases
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2. Moving down any group of the periodic table... (highlight the answer)
1. Atomic number and atomi...
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