Answer:
B. Na+ and O2-
Explanation:
Na+ plus has 10 electrons and O2- also has 10 electrons
Remember....
mass number= atomic number + number of neutrons
If the mass number is 19 and the atomic number is 9, then the number of neutrons is 19-9 which is 10.
Answer:
an animal that transfers pollen from flower to flower
Explanation:
think of a bee, bees move from flowers to flowers dropping pollen places and then it helps the plants grow.
