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When dealing with isotopes, it is important to keep the atomic number in mind. What is the atomic number of lithium?

A. 4, since it's the number of neutrons
B. 7, since it's the number of protons and neutrons in the nucleus
C. 1, since it's the difference of neutrons and protons in the nucleus
D. 3, since it's the number of protons

Sagot :

GinnyAnswer

Final answer:

The atomic number of Lithium is always 3, reflecting the number of protons in its nucleus.


Explanation:

The atomic number of Lithium is 3, as it has 3 protons in its nucleus consistently across isotopes. For example, Lithium-6 has 3 protons and 3 neutrons with an atomic number of 3 and a mass number of 6. Similarly, Lithium-7 contains 3 protons and 4 neutrons with an atomic number of 3 and a mass number of 7.


Learn more about Isotopes of Lithium here:

https://brainly.com/question/42227971


asmawasma448
D. 3, since it's the number of protons
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