In which groups of the modern periodic table are very active metals and very active non-metals placed?

Why does a plastic bottle that is sealed at a high altitude change it’s shape when taken to lower altitude

If e is the symbol for an element, which two of the following symbols represent isotopes of the same element? 1. e2. e3. ea.1 and 2c.1 and 4b.3 and 4d.2 and 3

The temperature of a lead fishing weight rises from 26 °c to 38 °c as it absorbs 11.3 j of heat. what is the mass of the fishing weight in grams?