All categories

3 years ago

What is atomic radius?

2 answers:

7 0

The chemical element's atomic radius is measured by the size of its atoms, usually the medium or typical distance between the central nucleus and the surrounding electron shells. As the limit is not a well defined physical entity, different definitions of non-equivalent atomic radius exist.

Hope this helps!

Phoenix [80]3 years ago

3 0

Answer:

The atomic radius of a chemical element is the measure of the size of its atoms, usually the mean or typical distance from the centre of the nucleus to the boundary of surrounding shells of electrons

Hope it helps :)

You might be interested in

Consider the reaction of cesium metal with gaseous fluorine to produce cesium fluoride. How many cesium ions are on the

ZanzabumX [31]

There is only one cesium ion on reactant (left hand side) of the reaction equation.

The formation of cesium fluoride involves the combination of cesium ion and fluoride ion. Cesium fluoride is an ionic compound since it is composed of ions.

The reaction between cesium ions and fluoride ions to form cesium fluoride occurs as follows;

Cs^+ + F^- ------> CsF

So, there is only one cesium ion on reactant (left hand side) of the reaction equation.

Learn more: brainly.com/question/1781817

5 0

2 years ago

Ponds and rivers are two types of

NeX [460]

<u><em>Ponds and rivers are two types of . . . . freshwater ecosystems</em></u>

5 0

3 years ago

Read 2 more answers

A compound is composed of 58% copper, 12.79% nitrogen, and 29.21% oxygen. What is the empirical formula of the compound?

padilas [110]

Answer:

C47N9O18 is the empirical formula of this compound.

Explanation:

3 0

2 years ago

Which statement about subatomic particles is true?

Kruka [31]

The correct statement about subatomic particles is Electrons are the subatomic particles with the smallest mass.

The mass of protons and neutrons which are considered as 1 unit of mass of atoms is approximately 1836 times the mass of the electron

$\boxed {\boxed {\bold {Further ~ explanation}}}$

Atoms are composed of 3 types of basic particles namely protons, electrons, and neutrons

The mass of this basic particle is expressed in units of atomic mass

This atomic unit uses the standard atomic mass, that is, the C-12 isotope

1 atom C-12 = 12 atomic mass units

1 atomic mass unit = 1/12 x mass 1 C-12 atom

1 unit of atomic mass = 1.66.10⁻²⁴

the mass of each basic particle in atomic mass units is:

electron mass = 9.11.10⁻²⁸

proton mass = 1.6726.10⁻²⁴

neutron mass = 1,675.10⁻²⁴

The proton mass is considered to be equal to 1 atomic mass unit and a neutron which is also considered to be equal to 1 atomic mass unit

The charge of 1 proton is equal to a charge of 1 electron but has a different sign

The proton is positively charged (+1), the electron is negatively charged (-1). and neutrons not charged (neutral)

For a charge of 1 electron = e = 1.66.10⁻¹⁹ coulomb

Whereas the neutron charge = 0

Let's look at the answer choices

1. Protons are the only subatomic particles to have a charge.

This statement is wrong because in the nucleus there are electrons charged -

2. Electrons are the subatomic particles with the smallest mass.

The statement is true because the mass of protons and neutrons which are considered as 1 unit of mass of atoms is approximately 1836 times the mass of the electron

3. Neutrons orbit the nucleus of the atom.

This statement is wrong.

It can be explained by the Bohr atomic model, where electrons circulate the nucleus on a particular path so that electrons are not attracted to the nucleus.