How do you calculate the atomic number of isotopes? What is relative abundance of isotopes? How is the atomic mass of an element calculated? How to find the amu of an isotope? How to find the number of neutrons in an isotope Does each isotope have its own mass number, or does each el...
This results in a net (overall) charge of the ion that is equal to the number of electrons subtracted from the number of protons.Answer and Explanation: The size of an ion relative to its parent atom will depend on whether ...
Question: Calculate how much faster helium effuses compared to nitrogen gas. Graham's Law of Effusion: Graham's law of effusion states that the rate at which two different gases effuses depends on the density as well as the molecular weight of the gas. The rate of effusion is inversely pr...
Owing to rapid molecular motion in solution, these bonds are transient (short-lived) but have significant bond strengths ranging from (9 kJ/mol (2 kcal/mol) (for NH) to about 30 kJ/mol (7 kcal) and higher for HF. As you might expect, the strength of the bond increases as the elec...
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Two atoms of a given element are said to be isotopes if they have different number of neutrons. The sum of number of protons and number of neutrons in an atom is known as mass number (A) of that atom. Isotopes have same atomic number and different mass numbers. Answer and Explanation:...
If an element has two electrons in the first shell and seven in the second shell, the element is said to be what? A. Unstable B. Unreactive C. Stable D. Inert If the atomic number of an element is 12 and the atomic mass is 25: a. How many protons are...
Mass spectrometry generates ions from inorganic or organic compounds. The separation is performed on the basis of the mass-to-charge ratio. There are four stages in mass spectrometry, namely ionization, acceleration, deflection, and detection. ...
A lead atom has a mass of 3.4 * 10−22 g. How many lead atoms are in a cube of lead that has a volume of 4.50 cm3 if the density of lead is 11.3 g/cm3? Density: The density of an atomic, molecular ...
The mass of the Sun is {eq}1.99\times {{10}^{30}}\text{ kg} {/eq}, and its composition (by mass) is approximately 70% hydrogen and 30% helium. Mass Percentage: The mass percentage of a substance in an object ...