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3 years ago

Which idea did john dalton include in his atomic theory

Chemistry

2 answers:

marysya [2.9K]3 years ago

8 0

Explanation:

Dalton's atomic theory is based on law of constant proportion and law of conservation of mass, which was the first to describe all matter in terms of their properties and atoms. It states that :

All matter are made up of atoms which are indestructible and indivisible.
All atoms of an element given, are identical in properties and mass.
The compounds are combination of two or more different atoms.
The chemical reaction is basically rearrangement of atoms.

Alexandra [31]3 years ago

5 0

Dalton's atomic theory proposed that all matter was composed of atoms, indivisible and indestructible building blocks. While all atoms of an element were identical, different elements had atoms of differing size and mass.

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The Geocentric and the Heliocentric models are descriptions of the universe known at the time when these models were developed.

RSB [31]

Answer:The Geocentric and the Heliocentric models are descriptions of the universe known at the time when these models were developed. The main difference between the two models is the perceived center of the known universe. According to the geocentric model, Earth is the center of the known universe

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2 years ago

What types of atoms release nuclear radiation

djyliett [7]

Isotopes of elements where the nucleas is unstable generally release nuclear radiation. So unstable atoms

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2 years ago

The concentration of pb2+ in a commercially available standard solution is 1.00 mg/ml. what volume of this solution should be di

Vanyuwa [196]

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2 years ago

Which notation designates a possible value for a principal energy level in an atom?

Nata [24]

Answer:

Explanation:

There are four quantum numbers:

Principal quantum number (n)

Azimuthal quantum number (l)

Magnetic quantum number (ml)

Principal quantum number (n)

It tell about the energy levels. It is designated by n.

For example,

If n =2

It means there are two energy level present.

Azimuthal quantum number (l)

The azimuthal quantum number describe the shape of orbitals. Its value for s, p, d, f... are 0, 1, 2, 3. For l=3

(n-1)

4-1 = 3

it means principle quantum is 4 and electron is present in f subshell.

Magnetic quantum number (ml)

It describe the orientation of orbitals. Its values are -l to +l. For l=3 the ml will be -3 -2 -1 0 +1 +2 +3.

Spin quantum number (ms)

The spin quantum number tells the spin of electron either its clock wise (+1/2) or anti clock wise (-1/2).

If the electron is added in full empty orbital its spin will be +1/2 because it occupy full empty. If electron is already present and another electron is added then its spin will be -1/2.

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2 years ago

Boling water is considered as

professor190 [17]

Answer:Boiling water is a physical change, as it rearranges molecules but does not affect the internal structures. Boiling water forces the water molecules away from each other as the liquid changes to vapor. In a chemical change, new chemical substances are created or formed. Advertisement. Physical changes affect the state of an item, and a chemical change happens at a molecular level.

Explanation:

hope it helps:))

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2 years ago