MCQ 4: The atomic number is the number of A. protons (p) B. electrons (e) C. neutrons (n") D. nucleons (p and n")

Q: Potassium naturally consists of 93.10% K-39 and 6.9% K-41. Calculate the atomic mass for Potassium.

A: Given that, % abundance of K-39 = 93.10 % = 0.9310  % abundance of K-41= 6.9 % = 0.069  Then,

Q: Ga-67, an isotope of gallium (Ga), is used medically to scan for various tumors. How many protons…

A: Number of protons is equal to atomic number in a atom. Mass number is the sum of protons and…

Q: • Part D Based on your answer in Part B, how many neutrons are in this amount of C? Express your…

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Q: Explain your answer. 1. Who is sir john joseph dalton? 2. What elements were formed during and after…

A: Supernova: It is breaking or explosion of star which include a lot of energy and light during the…

Q: Element Atomie Ups electrons symbol Element Name Mass of number Feutrone number protons 31 15 19 20…

A: This problem is related to the element name their symbol and atomic number, mass numaber, number of…

Q: 8) What kind of formular is C,H,O, consider as? A) Empirical formula B) Moleculr formula C)…

A: Protons and neutrons are present inside the nucleus and electrons are revolving around the nucleus…

Q: 2.70 Naturally occurring boron consists of two isotopes: 1°B (19.9%) with an isotopic mass of…

A: Average atomic mass is given as,

Q: Naturally occurring zinc metal is composed of Zn-65 with an atomic mass of 65.008. and Zn-67 with an…

A:

Q: 1. Potassium naturally consists of 93.10% K- 39 and 6.90% K-41. K-39 has an atomic mass of 38.963707…

A:

Q: A natural sample of chromium, taken from the ground,will contain four isotopes: Cr-50, Cr-52, Cr-53,…

A: Chromium has four stable isotopes which are Cr-50, Cr-52, Cr-53, and Cr-54. Isotopes are the atoms…

Q: ord's lab Select one: O a. was the basis for Thomson's model of the atom O b. proved the law of…

A: The Rutherford's model of an atom: A narrow beam of alpha particle are bombarded on the gold foil…

Q: A fictional element has 2 isotopes and an atomic mass of 67.18 amu. If the first isotope is 66 amu…

A: Average atomic mass can be determined by the equation given below:

Q: How do I Express my answer isotope for part F

A:

Q: 7. 12.01 g of carbon has approximately 602,214,129,000,000,000,000,000 atoms. What is the…

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Q: Section 5.4: ISotopes сорes 17. Can two different elements have the same atomic number? Explain.…

A: Yes two different elements can have the same ATOMIC NUMBER.

Q: 16. Silver exists as two isotopes with atomic masses of  106.9041 and 108.9047 amu. Determine the…

A: 16. Given that, Silver exists as two isotopes with atomic masses of 106.9041 and 108.9047 amu. For…

Q: question below

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Q: (c) Calculate the mass percent of protons in the nucleus of each of these isotopes. % of protons in…

A: The isotopes given are 105B and 115B.

Q: What are the atomic atom and atomic mass number of the carbon isotope here in the picture here?

A: An element is represented by the symbol XZA, where Z is the atomic number and A is the mass number.

Q: e.) Light travels 186 000 miles / second. How long is a light year in meters? (1 light year is the…

A: 3. e.) Given: Light travels 186 000 miles/second. First determine the number of seconds value in one…

Q: What is the average atomic mass of an element that has 3 isotopes with the data below? Isotope…

A: Average atomic mass calculation is explained below.

Q: How neutrons, are in 8838Sr?a) 50 b) 88 c) 38 d) 126

A:

Q: how to find the amount of neutrons in moles within a sample of silicon-30 and having a mass of 68.7

A: Given the atomic mass of silicon is 30 g/mol and the mass of sample is given as 68.7 g. Thus, the…

Q: An atom has a +3 charge a mass # of 42 and 20 neutrons. What is the amount of electrons it has?

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Q: Part III. Calculate the percent of each isotope using the atomic mass found on your periodic table.…

A: The elements are arranged in the rows and column of the periodic table. Moreover, certain elements…

Q: Chemistry midterm A neutron has a mass of and a charge of

A: A neutron is a particle present in the nucleus of the atom. It is a neutral particle having 1 unit…

Q: 1. Rubidium has two naturally occurring isotopes, from the following data calculate the value of X?…

A:

Q: Gallium, which has an atomic mass of 69.723 amu, hastwo naturally occurring isotopes, Ga-69 and…

A: Isotopes are variants of a particular chemical element which differ in neutron number, and…

Q: In any neutral Adam there are equal numbers of? A. Neutrons and electrons B. Protons and neutrons…

A: Neutral atom are those having not any charge. They are wholely neutral

Q: The existence of isotopes violates one of the original ideas of Dalton’s atomic theory. Which one?

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Q: i have 16 protons  16 neutrons and 18 electons  what would a sketch look like?

A: Since number of protons = atomic number in case of ions Hence the atomic number of the above atom is…

Q: Which idea came out of Rutherford’s gold foil experiment?a) Atoms contain protons and neutrons.b)…

A: Rutherford’s gold foil experiment is also called as Planetary model of the atom in which he told…

Q: 3. An element consists of an isotope with mass of 10.0129 amu and 19.91% abundance, and another…

A: Average atomic mass is the summation of fractional abundance multiplies to isotopic mass. Isotopic…

Q: Part C An atom has a mass number of 27 and 14 neutrons. What is the atomic number of this atom?…

A: Mass number & Number of neutrons are given.

Q: Fill in the empty cells. Isotopic Symbol Element atomic Symbol number mass # of # of # of number…

A: Atom consist the mainly three sub atomic particles, that are electron, proton and neutron. Electron…

Q: Give a Characteristics of an Atomic?

A: Solution-   An atom has three subatomic particles The nucleus has a well-charged atomic center and…

Q: QUESTION6 Rutherford's alpha-particle bombardment of gold foil helped develop our current model of…

A: Answer 6: In the Rutherford's alpha -particle experiment it was observed that:i)Most of the alpha…

Q: Gallium has two naturally occurring isotopesGa-69 with a mass of 68 9256 amu and a natural abundance…

A: Given : There are 2 naturally occurring isotopes of gallium. Mass of isotope 69Ga = 68.9256 amu And…

Q: 19. Draw an atom (not actual size). Label your drawing as completely as possible.

A: An atom is the fundamental unit that forms an element. They are very small and contains a nucleus at…

Q: Naturally occurring iodine has an atomic mass of 126.9045 amu. A 12.3849 g sample of iodine is…

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Q: The cation 119Sn+4  has how many electrons, neutrons, and protons

A: tin atom has 50 protons, 69 neutrons and 48 electrons. but it is Sn+4 ion so it  loose four…

Q: ow to describe isotopes in my own words

A: By using definition of isotopes.

Q: What are the structures labeled below? Type your answers here 1. 2. 3. Bonus Questions: 4. What is…

A: The labelling given is,

Q: Part D An atom of chlorine is represented by CI. How many neutrons are in the nucleus of this atom?…

A: Given, An atom of chlorine (Cl): Atomic number = 17 Mass number = 37 For any neutral atom Atomic…

Q: Silicon has three naturally occurring isotopes: 92.23% of Si-28 with an atomic weight of 27.9769…

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Q: #12,13,18,19,29 i need help with them

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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.