How many shells are represented in the presently known periodic table?

Q: 8. Part 1: Label the parts of this atom (nucleus, protons, electrons, neutrons) nucleus neutrens…

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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: What influence does the strong nuclear force have on the electrons in an atom? It attracts them…

A: Strong nuclear force is the binding force that acts as a glue holding the protons and the neutrons…

Q: 2 -Calculate the atomic number and atomic mass number for atoms with a- 4 electrons and 2 neutrons…

A: Atomic number is the number of proton present in a chemical material.The proton number is equal to…

Q: The atomic nucleus is most often made up of

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Q: Which of the following diagrams best represents the size of the atomic nucleus relative to the size…

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Q: 6. The particles in the nucleus that have a positive charge are the b. neutrons a. electrons c.…

A: Part (6):Introduction: There are three fundamentals particles are present in the atom electrons,…

Q: What does the atomic number of an element tell you about the element?

A: Step 1Atomic number is the basic property of the element, it helps one identify the element. Atomic…

Q: One half-life of an isotope is 22 years. How many years would it take to have only 25% of the…

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Q: Element symbol Mg Protons 10 Neutrons 12 Electrons 11 Mass number 24 23 00

A: A table with some missing values is given Let's find those missing values

Q: Phosphorus-32 is a commonly used radioactive nuclide in biochemical research, particularly in…

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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: The half life iodine-131 is 10 days. What fraction will be left after 30 days if the original mass…

A: Given that, The half-life iodine-131 is 10 days, T1/2 = 10 days The formula for the half-life is…

Q: Determine the number of neutrons in a bromine nucleus, which has a radius of approximately 5.32 ✕…

A: The radius of the bromine nucleus is, r=5.32×10-15 m The mean radius of the nucleus can be given as,…

Q: A radioactive element has an original mass of 150 grams. How much would be left in the parent atom…

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Q: The most common oxygen isotope is °0, but the rarer isotopes O and 10 of this element also exist in…

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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: The Hydrogen 3 nucleus (also called Tritium) consists of: a) two neutrons and one proton b) two…

A: Hydrogen-3 or H13 or Tritium is a radio-isotope of hydrogen.

Q: Which element's isotope is often used to treat cancer patients?

A: The correct option is cobalt Cobalt therapy or cobalt -60 therapy is the medical use of gamma rays…

Q: The activity of a radioactive element falls from 600 s1 to 500 s1 in 40 minutes. The half-life of…

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Q: After 90 years, 20 % of a radioactive material decays. What is the half-life?

A: Given data:   Time period, T = 90 years    Decay constant = λ   20% of radioactive material decay…

Q: Which isotope of hydrogen—deuterium or tritium—is abundant and which is scarce?

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Q: The half-life of Unobtanium-118 is 3 days. How many days pass for 800 grams of this element to be…

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Q: What do you think is the reason for an increasing atomic radius within one group?

A: As we move down a group the number of energy levels increase.

Q: What characteristic of an atom is changing in nuclear reactions? nucleus of an atom O electron size…

A: There are two kinds of reactions, chemical reactions, and nuclear reactions. The given question is…

Q: Part 3 Atomic Cakulatinns: Complete the chart belowe. 10. Hof p #of n # of e Element Atomic # Mass #…

A: Atomic # - No. of protons or electrons Mass # - No. of protons + No. of neutrons

Q: How many neutrons are in the nucleus of the atom 17 9 F

A: Given mass number is 17. Given atomic number is 9.

Q: An element with an atomic mass of 57 has an isotope with an atomic of mass 58. The source of this…

A: Isotope is a terminology given to an element that has variation in atomic mass than the same element…

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: The original number of atoms in a sample of a radioactive element is 4.00x10-0 . Find the time it…

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Q: Oxygen and hydrogen atoms combine to form water. If the nuclei in a water molecule were fused, what…

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Q: radioactive substance is known to have a half-life of 78 years. Calculate the number of years it…

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Q: Boron has two naturally occurring isotopes, boron-10, and boron-11. Boron-10 has a mass of 10.0129…

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Q: Elements that appear in the same column of the periodic table often share similar chemical…

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Q: What property of an atom determines which type of element it is? O Number of Proton plus Neutrons O…

A: The number of electrons (e) is equal to the number of protons (p) in a atom.  The number is e/p in…

Q: The value of A in the element symbol below determines the isotope of the atom.

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Q: a Atom X and atom Y have the same mass number, but they have different atomic numbers. Are they…

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Q: Element symbol     O     Protons   20   Neutrons   20   Electrons     14 Mass number 16   28

A: Oxygen has atomic number 8 and it's symbol is O.

Q: 16.  The ejection of an alpha particle and a gamma particle from a nucleus results in

A: The alpha particle is identical with helium nuclei consisting two proton and two neutron. So…

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…

Q: Energy stored in the nucleus of an atom is called: A) Nuclear energy B) Atomic energy C) Potential…

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Nuclear interactions

In nature, there are certain rules and standards for an interaction. These interactions are universally accepted. There are four types of interactions: