Question

4. Two or more atoms join chemically to form :
5. Property by which metals can be beaten into sheets :
6. Substances which contain only one kind of atoms :
7. Elements which emit harmful radiations are known as​

Answer 1

Explanation:

1.molecules.

2.Malleability

3.Element

4.radionuclides.

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Answer 2

Answer:

4) A molecule is formed when two or more atoms join together chemically. If atoms combine that are of two or more different elements, we call that a compound. All compounds are molecules, but not all molecules are compounds. When two hydrogen atoms combine with one oxygen atom, it becomes the compound water.

5) The property by the virtue of which they can be beaten into thin sheets is called malleability and the property by the virtue of which they can be drawn into wires is called ductility.

6) Any substance that contains only one kind of an atom is known as an elemennt

There are some elements with no stable form that are

7)always radioactive, such as uranium. Elements that emit ionizing radiation are called radionuclides.