From the video, you will learn how to solve the following question: Copper has two isotopes. Copper – 63 has an atomic mass of 62.93 amu and an abundance of 69.17%. What is the atomic mass of the …
What Are Refurbished Business Laptops And Why Should You Buy One?
At Reuselaptops, refurbished business laptops are retired business laptops we have restored to their original condition that function like new. How Does Reuselaptops Source Business …
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How to interpret and use chemical formula to go from moles of one substance to moles, atoms or grams of another
To use a chemical formula to find the mole ratio of the atoms in it, we must first learn how to interpret the chemical formula in terms of moles. Once we do, we can then proceed to write ratio …
How is Bohr’s atomic model similar and different from quantum mechanical model?
Both Bohr and Schrodinger assumed that in an atom there are permitted electronic states in which an electron has constant total energy. However, Bohr and Schrodinger differed in how they described the …
What you need to know to calculate the number of electrons and neutrons in an atom or ion
What is Atomic number? Atomic number is the number of protons in the nucleus of an atom. It can also be the number of electrons in a neutral atom. Pay attention to the word neutral. The proton …
What are significant figures?
To keep track of error (uncertainty) during calculations, we usually follow simple rules when adding, subtracting, multiplying, and dividing numbers. These rules include the following: Rule …