How does density change as it goes down the group and across the periods?

Answer 1

Among gaseous and liquid nonmetals, as atomic number increases, London dispersion forces increase with the number of electrons, resulting in higher polarity and intermolecular attraction. Therefore, density generally increases as atomic number increases.

The majority of metals have higher densitiesthan the majority of nonmetals. The high density of most metals is due to the tightly packed crystal lattice of the metallic structure. The strength of metallic bonds for different metals reaches a maximum around the center of the transition metal series, as those elements have large amounts of delocalized electrons in tight binding type metallic bonds.

However, other factors (such as atomic radius, nuclear charge, number of bonding orbitals, overlap of orbital energies, and crystal form) are involved as well.

Answer 2

Density is going UP when going down in the group

Density is going UP first and then going DOWN in the second part of the period when travelling from left to right, being at maximum at about group 11 (Cu) to 8 (Ru, Os).

Answer 3

As you move down a group on the Periodic Table, the density generally increases due to the addition of more mass and electrons. Across a period, the density can vary depending on the elements present, but it may increase or decrease based on the atomic structure and arrangement of the atoms.

Answer 4

Density varies across and up and down the periodic table because as the atomic weight of an element increases, so does its density.

Answer 5

density increases