Why do elements in the same group have similar properties?
A. Elements in the same group have similar properties as they all have the same number of electrons in their outer shell
B. They all come from the same place.
C. They all come from the same period and have the same number of electron rings
D. They all have the same number of neutrons
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Given the following equation: 2a1 + 3mgcl2 --> 2alcl3 + 3mg how many moles of aluminum chloride are produced from 2.5 moles of magnesium chloride?
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Why do elements in the same group have similar properties?
A. Elements in the same group have simil...
Physics, 01.01.2020 22:31