Choose the BEST answer to the following. Which of these three elements has the most mass (a) Hydrogen. (b) Iron. (c) Uranium. (d) Same in each.

Q: List the three subatomic particles found in the atoms and give their charges, mass in grams, and…

A: We know that there are three subatomic particles found in the atoms are:- 1) Electron  2)Neutron 3)…

Q: Why are heavier elements not much larger than lighter elements?

A: The heavier elements are not much larger because of the greater electrical attraction by the greater…

Q: 15. This Foreverspin TM top os made of pure carbon, with an Atomic Mass of 12. This top weights 9…

A: Given 12g grams of carbon will contain 6.02*10^23 atoms. Rounded of nearest 10th means rounding the…

Q: Which of water, iron, ammonia, chromium, radon, and silicon are chemical compounds as opposed to…

A: We have to write the chemical compounds as opposed to elements

Q: Choose the BEST answer to the following. When an element ejects a beta particle, the atomic number…

A: Answer:bi,e increases by 1.

Q: Pls. answer correctly and provide complete solution. Thank you.

A:

Q: How are elements with nuclei heavier than those of hydrogen and helium formed?

A: The process which gives rises to the elements with nuclei heavier than those of hydrogen and helium…

Q: Which element has the lightest atoms?

A: The element that has the lightest atoms is hydrogen.

Q: Which force tends to hold at atomic nucleus together, and which force tends to push it apart? State…

A: Solution:-

Q: what great discovery in physics and how it changed the way we see the world?

A: The theory of relativity is the theory which is considered that it changed the way to see the world…

Q: What are the possible ways to support the development of the future nuclear experts

A: Here are the some reasons in support of future nuclear experts:

Q: In understanding the nature of science, why might new science ideas be opposed??

A: The accepted views of science knowledge can change over time.  Changes can result from new science…

Q: What is the difference between atomic mass and atomic weight? Select one: a. Atomic mass is the…

A: (b) Atomic mass is the mass of an individual atom, whereas atomic weight is the average ( weighted)…

Q: What is the most abundant element in the known universe?

A: There are 114 known elements in the universe.

Q: 4) 2 tanx lim 3x

A: Answer :- This is the indeterminate  form of 0/0. Apply L.hospital rule . The limit of a quotient of…

Q: Use vestors, v,h, and p below to find the following. Leave answers in exact form. n = (4,5) h = |2i…

A:

Q: THE FOLLOWING QUESTIONS ARE BASED ON THE INFORMATION GIVEN HERE,

A: (A) R = ∫dR

Q: Name three different types of evidence for the existence of atoms.

A: Following are the three different type of evidence that proves the existence of the atoms.…

Q: Choose the BEST answer to the following. When an element ejects an alpha particle, the atomic number…

A: Generally nuclear decay changes the number of protons in the nucleus of an atom and changes the…

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

A:

Q: What is an element?

A: The matter that exists in the purest form is called an element. They cannot be changed or broken by…

Q: (1) (2) (3) (4) (5) (6)

A: Given:  A lens which is thicker at the middle and thinner at the edges is called converging lens.  A…

Q: Each isotope of helium have 2 protons in each of its nuclei, a helium isotope with 3 neutrons in…

A: Given, each isotope of helium have Z=2 protons in each of its nuclei, a helium isotope with N=3…

Q: Elemental carbon has 6 protons and 6 neutrons. This is often described as carbon-12. Carbon-13 has 6…

A: Mass Number = Number of protons + Number of neutrons For Plutonium: Mass Number = 244 Number of…

Q: It seems that as stars expand and collapse, certain elements like are formed. I am wondering if this…

A: Most of the elements in the universe originated in the high-pressure core of stars or during violent…

Q: A certain radioactive substance has 122,200 atoms with a half-life of 12 minutes. NOTE: This is a…

A:

Q: The half-life of carbon 14 is 5730 years [ Hint: Use the formula N(t)= N0e^k1 Answer in…

A: Given, N(t1/2)=N02 t1/2 of Carbon 14=5730 years

Q: Being the great space adventurer that you are you arrive on Mars as part of a scientific expedition.…

A: Number of protons (Z) = 213 Number of neutrons (n) = 73Number of electrons = 213

Q: Suppose you have four cubic meters of copper, two cubic meters of uranium, three cubic meters of…

A:

Q: What will happen when an electron returns to its original energy level?

A:

Q: "Every great physical theory starts as a heresy and ends as a dogma''. Give some examples from the…

A: A common observation in our daily life is that light travels in straight line.  When Huygens…

Q: How is it possible for an element to decay “forward in the periodic table”—that is, to decay to an…

A: It is possible for an element to decay “forward in the periodic table”—that is, to decay to an…

Q: Some people say that all things are possible. Is it at all possible for a common hydrogen nucleus to…

A: Hydrogen nucleus has only a single proton. An alpha particle is a helium nucleus and hence has two…

Q: A sample of a radioactive element has a half-life of 180 days; what percent of this sample will…

A: The decay constant of a radioactive sample is given by :  The amount of sample left after 't' time…

Q: Which is denser, ice at 0 °C or water at 4 °C?

A: Given: Ice at 0o C and water at 4o C The mass-to-volume ratio is related to density.

Q: What does modern physics talks about

A: Modern physics is an effort to understand the underlying processes of the interactions of matter…

Q: What does the atomic number of an element tell us about it

A: Explanation: Atomic number of an element tells that the number of protons in the nucleus of the…

Q: Choose the BEST answer to the following. When an element ejects an alpha particle, the mass number…

A: Generally nuclear decay changes the number of protons in the nucleus of an atom and changes the…

Q: this is one of the fundamental forces of nature that is responsible for radioactive decays in matter

A:

Q: Which of these are matter? 1. atoms 2. molecules 3. energy (A) 1 only (B) 1 and 2 (C) 2 and 3 (D) 1,…

A: Matter is something which is occupying a fixed or definite amount of volume and even have a definite…

Q: Where do the transition elements appear on the periodic table?

A: There are 18 groups and 7 periods in the periodic table in which all elements are arranged in order…

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: