Will !
carbon has six protons and six neutrons. which of the following represents the arrangement of electrons in a carbon atom?
2, 4
2, 2, 2
2, 8, 2
2, 10

The galapagos island contain 13 species of finches four of the species are seen here it is believed that all of the species had one common ancestor and overtime

Can someone i have no idea of how to do this.

Me the formula cacl2 represents the compound