Distinguish between mass number and atomic mass?

Q: What is the approximate mass of an oxygen atom in atomic mass units?

A:

Q: State tzvo characteristic properties of nuclear force.

A: The nuclear force is one of the four fundamental forces of nature, the others being gravitational…

Q: The half life of iodine-123 is about 13 hours. You begin with 50 grams. Write an equation remaining…

A: Write the amount of iodine as a function of time (t),

Q: Distinguish between nuclear fission and nuclear fusion

A: Distinguish between nuclear fission and nuclear fusion.

Q: The three most common forms of radiation caused by nuclear decay are

A: To rank: Penetration ability of alpha, beta and gamma

Q: 1 atomic mass unit is about:

A: One atomic mass unit is defined as a mass exactly equal to one – twelfth the mass of one carbon -12…

Q: Order the following elements by increasing atomic radius according to what you expect from periodic…

A: In the periodic table as we move from left to right the atomic radius decreases.Arsenic(As)is a…

Q: Calculate the mass of an atom using theatomic mass unit.

A: Since one a.m.u is equal to 1/12th of the mass of carbon atom. Consider 6.02×1023 atoms of carbon is…

Q: The half-life of 20 kg of Bismuth -210 is 20 minutes. Explain this statement?

A:

Q: If the size of a nucleus (in the range of 10-15 to 10-14 m) is scaled up to the tip of a sharp pin,…

A: The actual size of the nucleus is, 10-15m.The apparent size of the nucleus is, 10-5mThen, the…

Q: State two characteristic properties of nuclear force.

A: Nuclear force is a force that acts between the protons and neutrons of the atom. They bind protons…

Q: PLEASE HELP ME ANSWER WITH SOLUTION find the following: Nuclear Radius Nuclear Mass Nuclear Volume…

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Q: Choose the BEST answer to the following. The neutrons in an atom are normally found (a) inside the…

A: Answer: ai,e  inside the nucleus.

Q: Consider these three nuclei: A. Th-233; B. U-235; C. U-238. From most to least, rank them by the…

A: *A the atomic number of Th-233 is 90. then the number of proton and electron is 90. Number of…

Q: Express unified atomic mass unit in kg.

A: Solution:- In 1 amu = 16.022×1023gm

Q: Fill out the table below. Atomic Mass Number of Number of Name Symbol Charge number Number neutrons…

A: The atomic symbol  is of the form XZA, where X is the symbolic representation of the element, A is…

Q: 4. Actinium-227 emits a beta 5. Th-227 emits an alpha and a gamma 6. Ra-223 emits an alpha

A: Given:Actinium-227Thorium-227Radium-223To Find:Nuclear equation of each

Q: you find a nuclear binding energy for an Atom

A: Given:- HOW TO FIND THE NUCLEAR BINDING ENERGY ? EXPLANATION:- We know that the binding energy is…

Q: What is meant by the half-life of a quantity?

A: Half-life refers to the amount of time it takes for half of a particular sample to react.…

Q: pass

A: Half-life is used to measure the decay rate of the radioactive isotope. One half-life is said to…

Q: A certain container has 0.56grams of 90Sr. Calculate the activity of this material in units of…

A:

Q: A radioactive source has a half-life of 80 s. How long will it take for 7/8 of the source to decay?

A: Given, the half life a radioactive source =80 s we have to calculate the time for 7/8 of the source…

Q: State the changes in the values of the mass number and the atomic number of an element, when it…

A: Note : Since there are multiple question and as per guidelines we can provide solution to first…

Q: What holds the protons and neutrons together in the nucleus

A: Protons and neutrons

Q: How does one isotope differ from the another?

A: In an isotope, the number of protons is always equal to the number of electrons, but the number of…

Q: Write the relationship between the size and the atomic mass number of a nucleus.

A:

Q: A radioactive substance has a half life of 15 minutes. How much of a sample of this substancewill…

A:

Q: QUESTION 8 The first atomic model suggested by J.J.Thompson usually is called model. cherry cake O…

A: The first atomic model suggested by J.J Thompson

Q: A and B are fresh apples. Apple A is strongly irradiated by nuclear radiation for 1 hour. Apple B is…

A: Apple A absorbs energy when it is strongly irradiated for one hour. As a result, the atoms of apple…

Q: Element X has 2 isotopes. One of the isotopes has a mass of 18.9 with an abundance of 75.4%. The…

A: Given: Mass of the first isotope m1 = 18.9 with 75.4% of abundance Mass of the second isotope m2 =…

Q: A sample of a radioactive metal start with a mass of 400 grams when a chemist examines it later it…

A: Half-life of a radioactive sample is defined as the time at which mass of the radioactive sample…

Q: A radioactive element has a half-life of 3 days. The initial amount of that element is 1024 grams.…

A:

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: Just after an alpha particle leaves the nucleus, would you expect it to speed up? Defend your…

A: An alpha particle is emitted by a nucleus

Q: was the first to discover the phenomenon of radioactivity . O J.J.Thompson O H. Wells H. Becquerel O…

A: Correct option is (c) i e H.Becquerel .

Atomic Number

Elements are the building blocks of all the matter that exist in the universe. Every element is made up of atoms that have protons, electrons, and a nucleus. In order to know the difference between the elements, an atomic number is used. Every element has its own individual atomic number. The atomic number is a single most important characteristic of an atom.