Acalcium atom has 20 electrons. an oxygen atom has 8 electrons. using the electronic structures of calcium and oxygen explain why calcium oxide has the formula cao

Which of the following pressures is equal to 760 mm hg? 2.0 atm 101.3 pa 101,300 kpa 101,300 pa

In the following table, all the columns for the element calcium are filled out correctly. element electron structure of atom electron structure of ion net ionic charge calcium 1s22s22p63s23p64s2 1s32s22p63s23p64s1 +1 true false

Which rate indicates the number of children that would be born per woman if she were to live to the end of her child bearing years