Categorized the first 18 elements on the periodic table as ionic elements, covalent elements, or noble gases.?

Answer 1

H = generally covalent
He= noble gas
Li=ionic element
Be=ionic element
B=covalent
C=covalent
N=covalent
F= ionic
Ne= noble as
Na=ionic
Mg=ionic
Al= sort of both
Si=covalent
P=covalent
S=covalent
Cl=ionic
Ar=noble gas

Answer 2

The first 2 answers have part of the story.

The last column (Group 18) on the right are the noble gases and in the first 18 elements, they will not react

The first 2 columns on the left (Groups 1 and 2) will almost always form an ionic bond, because they have a very low ionization energy.

The halides group (Group 17, next to the noble gases) will almost always from ionic bonds because they have a high electronegativity.

The more towards the middle, the more covalent is likely. Its not automatic,. It dependes on the electronegativity difference bewtween the 2 elements that are bonding. The higher the difference, the more ionic.

Answer 3

In the last column (all the way to the right), those elements are noble gases. For ionic and covalent bonds, it depends on how they bond. If they share the electrons, then it's an ionic bond. If one molecule gives one or more electrons to another molecule, then it's a covalent bond.

Answer 4

Noble gases:

Helium
Neon
Argon
Krypton
Xenon
Radon

Ionic Elements:

I don't know

Covalent Elements:

I don't know these either