One of your classmates is having trouble understanding ions. he explains the formation of a cation like this:
"when you add an electron, you get a positive charge because adding is positive in math."

Pbco3 –> pbo+ co2. how many liters of carbon dioxide gas is produced from the decomposition of 32 grams of lead (ll) carbonate?

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?

Will mark brainliest how many electrons can be held in the energy level n = 4?