I was just looking over the periodic table of elements and wanted to know: Why are some of the spaces blank?

Question

Why are some of the spaces for the elements empty?

Answer 1

The columns ("groups") are organized by the electron configuration in the valence shell. Though helium has only two electrons, that's enough to fill the valence shell (the 1s shell) because it's the only shell. The order of filling the shells isn't simple.

Answer 2

Because atoms with the required number of protons and electrons have not been isolated yet. An atom's chemical properties is determined by its number of electrons, in order to fill any blank space the atom must have similar chemical properties to the element above it in the vertical column.

Answer 3

Ununoctium. anyhow, the adult adult males who say that for the time of basic terms oxygen is needed on the same time as different gases at the instant are not, then u isn't living at present. organic OXYGEN IS poisonous! and the full earth would have burn down in single spark. additionally Carbon Dioxide and intensely some different gases recent (like greenhouse gases which shelter earth's temperature) have their very own magnitude. too.

Answer 4

due to the composition of the periodic table we know that certain elements exist or can be created although they haven't been discovered yet, so we left their spaces blank.

Answer 5

If it is an old periodic table, then they have not yet been discovered. But if it is recent, then they are simply atoms that arent found in nature (but they can be created in a laboratory, even if they dont last long)

Answer 6

Because elements with that number of protons, electrons, and nuclear mass are possible to create, or find if they exist naturally. It's all pretty orderly.

Answer 7

because those atoms haven't been created yet and the blanks keep the table in proper order