How Many Neutrons Are Found in Ne-21

Q21: What is the charge on the cesium

Q22: All elemental symbols are comprised of a

Q23: How many protons are found in C-14?<br>A)8<br>B)14<br>C)6<br>D)0<br>E)none

Q24: The number of protons in the nucleus

Q25: What is the correct chemical symbol for

Q27: An isotope represented as S-34:<br>A)is an isotope

Q28: How many protons and electrons are present

Q29: Ernest Rutherford proved the existence of electrons.

Q30: Group 8A elements are also called:<br>A)noble gases.<br>B)halogens.<br>C)alkaline

Q31: The atomic mass of a single carbon