Question

for each of the following sets of atoms, rank the atoms from smallest to larfest atomic radius.
a. Li,C,F
b. Li, Na,K
c. Ge,P,O
d. C,N,Al
e. Al,Cl,Ga

Answer 1

Open your periodic table. Then you need to know the following rules: 1. The size of an atom decreases when you go across a period, So Li >C>F. This is because the electrons are being added to the same shell and are pulled in by the increasing positive pull of protons. Rule 2: As you go down a row, the size increases because you have added a new shell with each period. So Li<Na<K See if you can use these three. Use Rule 2 for Ge, P, O. I predict O<P<Ge. And Al>C>N. And Ga>Al>Cl