The atmosphere protects us and what is on earth from the suns rays and also harmful radiation. It's kind of like a barrier between the sun's direct rays and earth. <span />
Answer:
17.6
Explanation:
Answer is explained above
Answer:
Bohr's model of the hydrogen atom is based on three postulates:
1) An electron moves around the nucleus in a circular orbit,
2) An electron's angular momentum in the orbit is quantised,
3) The change in an electron's energy as it makes a quantum jump from one orbit to another is always accompanied by the emission or absorption of a photon. Bohr's model is semi-classical because it combines the classical concept of electron orbit (postulate 1) with the new concept of quantisation ( postulates 2 and ).
Vas happenin
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Atoms are referred to basic unit of matter
Hope this helps *smiles*
