If an elements has two or more atoms with the same number of protons but different number of neutrons it is called a(n) . Question 2 options:

isotope

neutron

electron

none of the above

One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing