Explanation:
Helium exists in three different forms due to the phenomenon of isotopy. Isotopy is the existence of two or more atoms of the same element having the same atomic number but different mass numbers due to the differences in the number of neutrons in their nuclei.
- The atoms of these elements are called isotopes.
- This is why Helium can exist in three different forms.
- Isotopes have the same electronic configuration but with the same chemical properties.
Learn more:
isotopes brainly.com/question/1915462
Isotopy brainly.com/question/2593342
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<span>a nonmetal bonds with a nonmetal, eg. Carbon and Oxygen form CO2 or CO
Metals and nonmetals form ionic bonds, metals don't bond with each other, and most noble gases don't bond at all.
Hope this helps! :)</span>
Answer:
D
Explanation:
You can see it going up by 20 on every line.
Answer:
Agree
Explanation:
Theories are refined and then become laws and laws are somehow more important than theories. In science actually what a law is, is a descriptive generalization. So we talk about the laws of thermodynamics that tell you about heat under different circumstances.