If an atom has 100 electrons, 157 neutrons, and 100 protons, what is its approximate atomic mass? What is the name of this element?

Q: What is the approximate size (cm) of a nucleus?

A: The  nucleus is found at the center of an atom. It consists of proton and neutron inside it. In 1911…

Q: Element X has 3 isotopes. One of the isotopes has a mass of 59.5 with an abundance of 43.3%. Another…

A: We know that, Average atomic mass of an element is a weighted average of all masses of all isotopes…

Q: 1s 2s 2p Which element is depicted in the diagram? O nitrogen O oxygen O carbon O sulfur Question 7…

A: From the electronic configuration we can say that the given element have 8 electron.  So atomic no…

Q: What is the atomic number of a given element is equivalent to ?

A:

Q: Problem 9:   Answer the following questions based on the graph of a radioactive iodine isotope shown…

A: (a) The half life of the material in days  Half-life is the time in which the 50 percent of iodine…

Q: A particular atom contains 29 electrons, 34 neutrons and 29 protons. Which element is this and tell…

A: A particular atom has 29 electrons, 34 neutrons and 29 protons. The atom is copper.

Q: What is the half life of Technetium?

A: Introduction: The time that a radioactive isotope or a substance takes for half of the isotope to…

Q: 9. What observations in the gold foil experiment made Rutherford conclude that atoms are mostly…

A:

The Bohr model

Students often get confused between Rutherford’s model and Bohr model of an atom. They interpret the postulates of both these models to be the same, which is incorrect. Rutherford’s model differs from Bohr’s model in the following ways: