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

Sugar and water are chemically combined.(a solution is chemically combined while a mixture is mixed together without bonding the molecules)

If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom