The periodic law was first postulated by Dimitry Mendeleef and Lothar Meyer around 1869 where they independently arrived at the periodic table or chart.

The table was based on the periodic law which states that "chemical properties of elements are a periodic function of their atomic weights".
The modern periodic law was restated by Henry Moseley in the early 1900s. He changed the basis of the law to atomic number.
The present periodic law is stated as "the properties of elements are a periodic function of their atomic number".

The laws of conservation of mass, multiple proportions and definite proportions are all explained by the Dalton's atomic theory.

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Dalton's model of the atom brainly.com/question/1979129

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3 years ago

Identify the chemical symbols corresponding to each element. drag the appropriate labels to their respective targets.

Shalnov [3]

The name and chemical symbol of the elements are

Carbon = C
Lead = Pb
Antimony = Sb
Sodium = Na
Aluminum = Al

<h3>What are chemical symbols?</h3>

Chemical symbols are which are used to represent the elements in the periodic table.

The chemical symbol assigned to elements are usually an abbreviation of the name of the element or the Latin form of the name.

The name and symbol of the given elements are as follows:

Carbon = C
Lead = Pb
Antimony = Sb
Sodium = Na
Aluminum = Al

The chemical symbols are used frequently in writing the formula of compound formed from the elements. For example, the compound sodium aluminate which contains sodium, aluminum and oxygen is written in a simplified form as: NaAlO₂.

Learn more about chemical symbols at: brainly.com/question/118939

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Note that the complete question is given below:

Part A

Identify the chemical symbols corresponding to each element Drag the appropriate labels to their respective targets.

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Element

Carbon

Lead

Antimony

Sodium

Aluminum

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1 year ago