Results of Firing Alpha Particles at Gold Foil Observation Proportion: Alpha particles went straight through gold foil >98% Alpha particles went through gold foil but were deflected at large angles 2% Alpha particles bounced off gold foil =0.01% What information do the experimental results above reveal about the nucleus of the gold atom? (A) The nucleus contains less than half the mass of the atom. (B) The nucleus is small and is the densest part of the atom. (C) The nucleus contains small positive and negative particles. (D) The nucleus is large and occupies most of the atom's space. 9.

Q: Isotopes are defined as atoms ofa. the same element with different numbers of protons.b. radioactive…

A: Atoms of the same element have the same number of protons, which is also called the atomic number.

Q: 15. Write the nuclei or particle in the blank of the condensed form. a 0-1B b. 73LI c. 'on d. 'IH…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

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A: Since the atomic number is decreased by 2 Hence it means the atomic number of the particle produced…

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Q: I need help with number 5

A: The enthalpy change of the reaction is determined as follows:

Q: For two isotopes Unk-45 and Unk-47 with relative abundance’s of 12.3% and 87.7%, respectively, which…

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Q: The radioactive element carbon 14 has a 1/2 life of 5750 years a scientist determined that the bones…

A: According to the question, the radioactive element C has half life of 5750 years.  Lost percentage…

Q: Alpha ... s Beta .... Gemma .... . Aluminum Teed Lead Which of the following BEST describes Gamma…

A: The correct option is (a): An atom shoots off a photon to release energy and stabilize it's nucleus.

Q: 85 11. For the Isotope 38Sr A. What is the atomic number? B. What is the mass number? C. What is the…

A: The given symbol for isotope is 8538Sr A) The atomic number is represented by the subscript.     The…

Q: 2. Use the following isotopes to answer the following 17 F, 135 Cs, 55 214 Po 84 write the nuclear…

A: Nuclear decay reaction: Also called as, Radioactive decay. It is reaction in which Radioactive…

Q: How many protons, neutrons and electons are in 31P3-

A: The element  31P3- It is Phosphorus and having atomic number 15 and atomic mass 31.

Q: 2. Using your knowledge of nuclear physics, write the equation for the following processes: a) The…

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Q: he 'H nucleus is composed of a single proton and therefore has a relative mass loss of 0 g/mol.…

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Q: 10. For the Isotope 6731Ga A. What is the atomic number? B. What is the mass number? C. What is the…

A: Question 10: Given isotope is: 6731Ga. What is its atomic number? What is its mass number? How many…

Q: During a nuclear decay a 238U atom can break apart into a helium-4 atom and one other atom. Assuming…

A: The property of a nucleus emitting α, β and γ rays is known as radioactivity and the substance…

Q: Besides number of neutrons, what else do isotopes of the same element have that is different?

A: Isotopes are the variation of chemical elements that have the same number of protons but a different…

Q: 2.28 The following radioactive isotopes are used in medicine for imaging organs, studying blood…

A: Isotopes are the nuclides which contain same atomic number but different mass number. Atomic number…

Q: Strontium-89 chloride is in a class of drugs known as radioisotopes. It delivers radiation to cancer…

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Q: Indiana Jones replaces the idol with a bag of sand of approximately equal volume: (Denisty of gold =…

A: The density of a substance is given by:

Q: PART II: Balance the nuclear equation by identifying the right particle or isotope ONLY + Sr + 4¿n…

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Q: Show that the neutron number for the following nuclides generally exceeds the atomic number for…

A: Atomic number (Z) = number of protons (p) Mass number (A) = number of peoton (p) + number of…

Q: 247 96 Column A 1. 2. 3. Cm →He + 4X What is the atomic mass of the new atom? What is the atomic…

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Q: Above what atomic number are there no stable isotopes of any element? 20 89 83 92 40

A: Atomic number 92

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Q: A sample of the nonexistent element mythium consists of 25.59% of an isotope with mass number 580,…

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Q: In each pair of isotopes shown, indicate which one you would expect to be radioactive. 20 17 40 45…

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Q: 3 Which pair of symbols represents nuclei with the same number of neutrons? 56Co and 58CO S7Mn and…

A: Given element are Element Atomic number (From periodic table) Co 27 Fe 26 Ni 28 Mn 25…

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A: There are some combination of proton and neutron , when these combination present in nucleus then…

Q: Stable isotopes are not radioactive. O True O False

A: The isotopes of elements which has neutron/proton ratio is more than 1.5 are mainly radioactive and…

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Q: CfY+4X nn A What is the atomic mass of the new atom? What is the atomic number of the new atom? What…

A: In nuclear reaction,  atomic number and mass number is balanced.  Balanced chemical reaction,…

Q: with alpha particles. 3. Meitnerium (Z 109) was formed by cold fusion which involves the combination…

A: We'll answer the first question, since the exact one wasn't specified. Please resubmit the question…

Q: RADIATION DECAY .| g. I Name Symbol What is it? Charge What Chemical symbol for the element.…

A: A question about atomic structure, which is to be accomplished.

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A: Alpha Particles  1) They are also known as alpha radiation. 2) They are formed as a result of the…

Q: The radius of Uranium-238 nucleus is about 7.44 × 10-3 pm. Calculate the density of the nucleus (in…

A: Given: The radius of uranium-238 =7.44×10-3 pm Atomic mass of uranium = 238 amu

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Q: Why does Sodium (Na) have fewer stable isotopes than Magnesium (Mg)?

A: The stable isotopes of an element depend on n/p ratio, if n/p close to 1 then it is likely to be…

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A: To solve this problem, we need to know the ratio:

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A: Rutherford initially thought that the atom consists of a electrons which are spread uniformly…

Q: 7. When a proton turns into a neutron in a nucleus, it emits what particle? c. positron d. proton a.…

A: Radioactive decay refers to the breakdown of an unstable nucleus to a stable nucleus with the…

Q: Arrange the isotopes of sulfur and phosphorus in order of decreasing the number of neutrons.

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Q: Discuss the principle of operation of He-3 based neutron detectors.

A: Neutron detectors detect the neutrons in the machine.

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A: The given isotopes of iron are - Fe-54 and Fe-56 In the given information Fe represent the atomic…

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Q: 4221Sc      which is the correct choice for the radioactive isotope listed above a)Its atomic…

A: The given nuclide is 4221Sc. In this 21 indicates the atomic number. 42 indicates the mass number.…

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A: Atomic number = number of proton, Atomic mass = no. of proton + no.of neutron

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Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.