Which of the statements about elements is true?
1. No two elements have the same kind of atom.
2. Scientists have identified a little less than 100 elements.
3. The atoms of all elements have the same mass and volume.
4. The atoms of all elements have different masses but the same volume.

An element is a substance whose atoms all have the same number of protons , in other words we can say that all atoms of a given element have the same number of atoms.

Characteristics of an element -:

The main characteristic of an element is that it is a pure substance. This means that it cannot be broken down any further and into any other substance.

Elements describes about the elements interact with the environment around them, especially temperatures and when they are placed into different substances .

No two elements have the same kind of atom is the statement true about elements hence , option (1) is correct.

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Which of the statements about elements is true? 1. No two elements have the same kind of atom. 2. Scientists have identified a little less than 100 elements. 3. The atoms of all elements have the same mass and volume. 4. The atoms of all elements have different masses but the same volume.

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Which of the statements about elements is true?
1. No two elements have the same kind of atom.
2. Scientists have identified a little less than 100 elements.
3. The atoms of all elements have the same mass and volume.
4. The atoms of all elements have different masses but the same volume.