n = 4, l= 1, me %3D Express your answer as an integer. Number of electrons =

Q: Should the elemental symbol for lead be written as Pb or PB? What confusion could arise if the wrong…

A: Elemental symbol for lead is Pb and it should be Pb .

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A:

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A: J J Thomson is one of the famous scientist in discovery of atomic structure and subatomic particles…

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A: Chemical reaction:

Q: n= 3, me = –2 Express your answer as an integer. ΑΣφ Number of electrons =

A: The value of principal quantum number (n) is 3 and magnetic quantum number (ml) = -2.

Q: The subatomic particle known as the proton has a mass of 1.67x10-24 g and a diameter of 1.00x10-13…

A: Density is given by the expression: Density=MassVolume

Q: 1.Which of the following elements is not an alkali metal? a. Li b. Na c. K d. P

A: Note : As per our guidelines , we are supposed to answer first question please resubmit the other…

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Q: 96. Plutonium-239 is used in nuclear bombs. Determine the number of protons and neutrons in…

A: The atomic number of an element represent the number of protons present in the nucleus of that atom.…

Q: The radius of a lead atom is 175 pm. How many lead atoms would have to be laid side by side to span…

A: Initially we need to convert Picometer to Millimeter.

Q: A hydrogen atom, which has one electron, has a radius 0.7 x 10-10 m. The radius of its nucleus is…

A: Atomic number of hydrogen atom is 1 and consists one proton in the nucleus. And one electron is…

Q: Suppose that mercury forms a perfect spherical droplet with a diameter of 5.0 mm. (a) What is the…

A: Density is given by the ratio of mass of the substance to its volume. 1 mole of a substance contains…

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A: The number of protons in an atom is equal to the atomic number of that atom. In a neutral atom, the…

Q: State the number of electrons in Se^2−. Express your answer as an integer.

A: Since we know that  When there is positive charge on an atom it means that it has lost the electrons…

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A: "Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: There are 1.699 x 1022 atoms in 1.000 g of chlorine.  Assume that chlorine atoms are spheres of…

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A: The name of the given element symbols in each group has to be given.

Q: Determine the number of atoms in 1.85×10^-3L of Mercury. [The density of mercury is 13.5g/mL.]

A:

Q: The radius of a rhodium atom is 134 pm. How many rhodium atoms would have to be laid side by side to…

A: We have to calculate the number of rhodium atoms.

Q: If the radius of a neutron is 1.0 x 10-13 cm, calculate the density of a neutron in g/cm3 . (volume…

A: Given, radius(r) = 1.0 × 10-13 cm we know that the neutron is spherical in shape so the volume of…

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A: In the periodic table all elements are distinguisable by their atomic number,  chemical symbols and…

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A: Mass of M=60 grams Mass of MAx3=?

Q: Locate each element in the periodic table and classify it as a metal, nonmetal, or metalloid. a.…

A: Titanium belongs to group 4 and is present in d block. It is a metal. Chlorine belongs to group 17…

Q: Complete the following shorthand notations: ? (p, a) §Li 15 31P (a, ? ) 34S 16 242Cm (a, n) ? 96 25…

A:

Q: How many protons and electrons are there in a neutral atom of each of the following elements? Part C…

A: A neutral element with atomic number x has x number of protons and x number of electrons.  Here, the…

Q: What is the volume of a molybdenum atom in microliters?

A: 1 cm3 = 1 mL  1 mL = 0.001 L  1 mL = 1000 microliters

Q: The volume of a single potassium atom is 5.16×10-23 cm³. What is the volume of a potassium atom in…

A: Given:The volume of a single potassium atom is 5.16×10-23 cm3.we have to find the volume of a…

Q: 3. The radius of a hydrogen atom is 0.529 A. (1010 A = 1 m) Convert the radius of a hydrogen atom:…

A: (3) Consider the given information is as follows; Radius of hydrogen atom = 0.529 A° 0.529 A° = ? m…

Q: Where do I find the charge of the elements in the periodic table?

A:

Q: The ratio for an mass-to-charge electron is 5.64x10−12 kg/C. In another experiment, using Millikan's…

A: Millikan did an experiment to determine the mass to charge ratio for an electron which was known as…

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A: The atomic number of an element tells about the number of electrons and protons present in an…

Q: Give the number of protons (p), neutrons (n), and electrons (e) in a) 15N3- b) 40Ca2+ SNER

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A: The diagram given is,

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A:

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A: Here the volume of a single lead atom is given in cm3 and we have to convert it into microliters.…

Q: A sample of chemical X is found to contain 5.0 grams of oxygen, 10.0 grams of carbon, and 20.0 grams…

A:

Q: The elements of group 4A show an interesting change in properties moving down the group. Give the…

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Q: The element Neptunium has a density of 19.60 g/ml. What is the radius of a sphere of this material…

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Q: if the density of an element 1.5 g/ml with volume 1.8 L, its mass will be .. 2700 O 2.7 O 1200 1.2…

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Q: Carbon-12 contains six protons and six neutrons. The radius of the nucleus is approximately 2.7 fm…

A: SOLUTION: Step 1: 1 fermi meter = 10-15 m 1 picometer = 10-12 m The volume of the nucleus is…

Q: 2 Most of the elements are solids at room temperature. Give three examples of elements that are…

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Q: The volume of a single strontium atom is 4.15 x 10-23 cm³. What is the volume of a strontium atom in…

A: It is a volume unit conversion problem where we are asked to convert the volume from cubic…

Q: J.J Thomson is credited for discovering the proton (True or False) True False

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.