1) they have similar chemical properties.
for example fluorine from the 17th column is a non metal so does all the elements of that group.
2)they have same valence electrons in their outermost shell
example
electronic configuration of
hydrogen 1, lithium 2,1, sodium 2,8,1 and so on.
3) have same valency.
The appropriate response is peripheral.
<h3>What exactly does being nervous mean?</h3>
- Expressing or demonstrating worry, apprehension, or concern I get anxious whenever I have to give a speech.
- A sudden feeling of dread or panic She detests operating a vehicle.
- Consisting of, involving, or comprising nerves or nerve cells.
<h3>What functions does the nervous system perform?</h3>
Your nervous system uses neurons, which are specialized cells, to send impulses and messages throughout your body. Your muscles, organs, glands, skin, and brain all send and receive electrical signals. The communications allow you to move your limbs and feel things like pain.
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Answer:
Pine trees produce seeds in cones
Explanation:
Decaying uranium atoms in the earth's crust result in Radon gas. Radon gas cannot be synthetically or commercially produced. It is produced as the result of the natural breakdown of uranium i.e. decaying uranium atoms. Radon gas is a naturally occurring radioactive gas. People are exposed to Radon gas via the inhalation and ingestion of the gas. Because it is found in the ground, water or building materials, Radon gas can enter work buildings as well as private dwellings.
