Which of the following lists the characteristics that all matter has?

a. it has mass.
b. it has mass and takes up space.
c. it has mass and can be seen without a microscope.
d. it has mass, takes up space, and can be seen without a microscope.

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided