answer: The atoms of different elements all have different numbers of protons. Meanwhile, the mass number of an atom consists of the total number of protons and neutrons it contains
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Answer:
Heating an atom excites its electrons and they jump to higher energy levels. When the electrons return to lower energy levels, they emit energy in the form of light.
Explanation:
hope this helps plz mark brainliest
Answer:
<em>Ways to prevent stomach diseases</em><em> </em><em>are</em><em> </em><em>as</em><em> </em><em>given</em><em> </em><em>below</em><em>:</em><em>-</em>
<em><u>Chew food thoroughly, and don't overeat.</u></em>
<em><u>Avoid raw shellfish if you're not sure the source is a safe one.</u></em>
<em><u>Limit your intake of fats and alcohol.</u></em>
<em><u>Get plenty of fluids</u></em><em><u>Exercise daily.</u></em>
<em><u>Exercise daily.</u></em>
<em><u>Avoid foods that cause gas.</u></em>
<em><u>Avoid sweeteners that cause gas such as fructose and </u></em><em><u>surbiton</u></em><em><u> </u></em>
D) orbit the nucleus like the planets orbit the sun.
this idea was first proposed in the rutherford model:)
Scientists use fossils to study earth history by identifying the fossil and what era it came from. By knowing what era the fossil came from and what location it was found, scientists can make assumptions about the earth formation at that time.