Describe why "new" elements (man-made elements) are created, or why do we benefit in creating them? 2) Explain why creating new elements is difficult. 3) In general, how are man-made elements created (give 2 examples).

Q: Assuming that the shape of atoms is spherical, what is the diameter (in angstroms) of an atom that…

A: A multiple choice question based on atomic structure, which is to be accomplished.

Q: In 1808, John Dalton proposed a series of statements regarding the atom that became known as…

A: Given, Five statements of Dalton's atomic theory is given -     Required,                   Among…

Q: Describe and write about the history of the atomic theory. Compare the five theories.

A: Atomic theory: The theory that tells about the structure of the atom is named atomic theory. Atomic…

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A: (A) Writing down the balanced chemical equation: N2O4(l) + 2 N2H4(aq) ----> 3 N2(g) + 4 H2O(l)…

Q: By the end of this module you will be able to: • · ● · • . Module 2 Atomic Structure and…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Identify each of the following elements as a metal, a nonmetal, or a metalloid. Drag the appropriate…

A: Metals : It is a solid material that are have a properties of hard, malleable, shiny, ductile, with…

Q: Below are some chemical fertilizes, molecular compounds of lonic compounds. What is the atomic…

A: “Since there are multiple sub-parts in this question and it is not mentioned that which one has to…

Q: My dear hero expert please don't upload any image just give me the answer with proper explanation

A: For 1st compund : IUPAC name : There are 1 methyl group in 2nd carbon and propyl group in 3 carbon…

Q: Classify the substance shown in the sketch below. You can click the other tabs in the sketch to get…

A: Given: The sketch provided shows a substance.  Looking at 1000X, it seems to be hard and a pattern…

Q: sa particle.

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Q: Determine the numbers of protons, neutrons, and electrons in each of the following species: (a)…

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Q: Please don't use hend raiting and step by step solutions

A: Number of electron and proton in iron is 26 .So atomic number of iron is 26 .Symbol of iron is 26…

Q: the existence of life beyond the earth, we have to search all these seven elements i. e. carbon,…

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Q: Analysis of a compound showed that it contained 12.11 g oxygen and 12.09 g of sulfur. A sample of a…

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Q: What is the ratio of hydrogen atoms (H) to oxygen atoms (O) in 2 L of water? Enter the simplest…

A: Dear student since you have asked multiple questions but according to guidelines we will solve 1st…

Q: Let's start by finding the location on the periodic table for the atoms for substances that conduct…

A: In general ionic compounds formed between metal and non metal conducts electricity when dissolved in…

Q: How could a carbon atom could become a nitrogen atom? Explain and be specific in your explanation

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Q: Imagine an alternate reality. The Thomson cathode ray experiments arrived at a charge to mass ratio,…

A: Here, we have to determine mass of electron.

Q: 1.Define matter and classify a given substance by state and composition; and suggest how to separate…

A: (1) Matter is any Substance that has mass, occupy volume, and can be sensed by our sense organs. For…

Q: 32 g of sulfur will react with 48 g of oxygen to produce 80 g of sulfur troxide. If 20 g of sulfur…

A: Mass of S = 20 gMass of Oxygen(O2) = 100 gMolar mass of S = 32.06 g/molMolar mass of O2 = 32…

Q: The radius (r) of a silver atom is 160 picometers (1 pm = 1 × 10–12 m). Estimate the thickness of…

A: First convert the unit of radius from picometers to centimeters; 1 pm=10-10cm160 pm=160×10-10cm

Q: If 1.4% of the mass of the human body is calcium, how many kilograms of calcium are there in a…

A: Calcium= 1.4% of mass of human body  Weight of man = 185 pound

Q: You are exploring the universe in your spaceship, and you land on a planet that is very similar to…

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Q: Calculate the mass of a gold-197 atom using the information from question 9 and the masses of the…

A: The ratio of mass to the volume of the solution is known as density.

Q: As you know, one way to classify matter is by its material. Metals, nonmetals, and metalloids are…

A: The periodic table's leftmost elements have the strongest metallic characteristics, and when we move…

Q: There are four sketches below. The first sketch shows a sample of Substance X. The three sketches…

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Q: a. The space station uses prepackaged 25.0 kg cartridges of lithium oxide. How much water does each…

A: a. Lithium oxide is used to remove water from air according to the following equation.…

Q: The total mass of 12 protons, 27 neutrons, and 24 electrons

A: Given that, no. of proton = 12 no. of neutron = 27 no. of electron = 24

Q: What is NOT a new innovation to determine the properties of the elements and compounds that make up…

A: Given are four options and we have to tell the correct one about the innovation that is not new.

Q: Uranium has three isotopes : uranium-233, uranium-235, and uranium-238. Compare the number of…

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Q: 22. Based on your understanding of the relationships between the structures and physical properties…

A: Nonmetals have low melting point.They are soft.Nonmetals are not soluble in water.They are poor…

Group 14 Elements

The following elements come under group 14 of the periodic table.