##### Asked by: Neil Goodson

**specific patterns that are present in the periodic table that illustrate different aspects of a certain element**. They were discovered by the Russian chemist Dmitri Mendeleev in the year 1863.

## Does atomic volume decrease across a period?

Solution : In the periodic table the atomic size first decreases from left to right in period, so **the atomic volume first decreases and then increases** because atomic size in last of any period increases.

## Why does atomic volume increase down a group?

Volume of the elements on moving down in a group increases because **when we move down in a group then the number of shells, in which electrons move, increases**. And hence the effective nuclear charge increases. So their volume increases.

## Does atomic volume decrease down a group?

atomic size, radius, volume

**Increases down a group in general** (outer e- further from the nucleus as they are in higher energy levels but the effective nuclear charge does not greatly increase down a group, so e- spread out more).

## Why does the atomic size decreases across a period?

Across a period, effective nuclear charge increases as electron shielding remains constant. **A higher effective nuclear charge causes greater attractions to the electrons, pulling the electron cloud closer to the nucleus which results in a smaller atomic radius**.

## Does the volume of an atom change?

**As the atomic radius decreases, the volume of the atom also increases** because we know that volume is a function of the radius of the atom.

## Why does atomic size increase down a group and decrease left to right?

In a period, the size of an atom decreases from left to right. This is **because the nuclear charge, i.e., the atomic number increases from left to right in the same period, thereby bringing the outermost shell closer to the nucleus**. (d) Metallic character increases down the group and decreases across a period.

## What is meant by atomic volume?

Definition of atomic volume

: **the quotient obtained by dividing the atomic weight of an element by its specific gravity**.

## What is periodicity of atomic volume?

Atomic volume, defined as the volume in cm3, occupied by one gram atomic weight of an element was shown by Lothar Meyer in 1869 to be a periodic function of the atomic weight.

## How does atomic size increase on the periodic table?

Atomic size increases **as you go down a column because of the addition of another electron shell and electron shielding**. Atomic size decreases as you go right across a row because of increased protons.

## Is atomic volume a periodic property?

Mendeleev created the first periodic table and was shortly followed by Meyer. They both arranged the elements by their mass and proposed that certain properties periodically reoccur. **Meyer formed his periodic law based on the atomic volume or molar volume, which is the atomic mass divided by the density in solid form**.

## What determines the volume of an atom?

Use the mathematical formula for the volume of a sphere to calculate the volume of the atom. The mathematical formula for the volume of a sphere is **the fraction four-thirds multiplied by Pi, which is then multiplied by the cubic radius of the atom**. Pi, a mathematical constant, is 3.141.

## Where is the most volume of an atom?

electrons

The nucleus is the atom’s central core and contains more than 99.9 percent of its mass. **Surrounding the nucleus** is a cloud of electrons, which makes up most of the atom’s volume.

## Which statement correctly defines the atomic volume of an element?

Complete answer:

Atomic volume can be defined as **the total space acquired by one mole of an element in its solid form**.

## Is atomic volume a periodic property?

Mendeleev created the first periodic table and was shortly followed by Meyer. They both arranged the elements by their mass and proposed that certain properties periodically reoccur. **Meyer formed his periodic law based on the atomic volume or molar volume, which is the atomic mass divided by the density in solid form**.

## What is meant by atomic volume?

Definition of atomic volume

: **the quotient obtained by dividing the atomic weight of an element by its specific gravity**.

## What happens to atomic mass going from top to bottom in a group in the periodic table?

So, when the atomic number increases, the mass number of the isotopes is higher (though they are different isotopes), and so the relative atomic mass will increase. Since this occurs as you go down a group, **the atomic mass increases as you go down a group**.

## What is used in determining the atomic volume?

Atomic volume can be defined as the total space acquired by one mole of an element in its solid form. It can be calculated by **finding out the ratio between the gram atomic weight and the density of the concerned element in solid state**.

## Which element has the highest atomic volume?

Francium

**Francium** is the element that has the largest atomic volume.

## Which element has least atomic volume?

Atomic volume of **Boron** is least.