You can tell what elements have how many valence electrons by what group they're in. Groups are vertical. So group 1 has 1 valence electron Group 2 has 2 valence electrons Group 3 has 3 valence electrons, etc.
Answer from: Quest
the answer is 1260
you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.
7*5*36= 1260 it's all about multiplying
Answer from: Quest
your answer is c) plasma
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Another question on Chemistry
Chemistry, 22.06.2019 04:50
The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion
6) (a) calculate the absorbance of the solution if its concentration is 0.0278 m and its molar extinction coefficient is 35.9 l/(mol cm). the depth of the cell is 5 mm. (b) what is the %t? (7) calculate the absorbance of the solution if the transmitted light intensity is 70% of the initial light beam intensity