Which element has a larger ionic radius than calcium? a. sodium b. gallium c. magnesium d. potassium

The element magnesium has significantly fewer protons and neutrons than gold. If you were to use MgMg in place of AuAu in the Rutherford experiment, how would you predict the results from the experiment to change?

How many grams of bicarbonate will produce 40 ml of CO2

Iron metal can be produced from the mineral hermatite, Fe2O3 by reation with carbon Fe₂O3 + C Fe + co2 balance the equation How many grams of carbon are needed to react with 525g of hermatite

The total energy of all the particles in a substance is called

Two elements with the same number of protons but a different number of neutrons are called

A population of crabs live on a light-colored sandy beach. In this environment there is a population of birds that eat the crabs. One year, there is a volcanic eruption near the beach and dark volcanic ash covers the beach.

It would take one light year to travel to the sun? True or false?

A specific, electrically neutral atom of boron has 5 protons, 5 electrons, and 6 neutrons. what is the mass number of this atom of boron? 6 5 11 16

When does hail happen?

For the reaction, calculate how many moles of the product form when 0.012 mol of O2 completely reacts. Assume that there is more than enough of the other reactant. 4Al (s) + 3O2 (g) →2Al2O3 (s) Express your answer using two significant figures.