The radius of a tungsten atom is 137 pm. How many tungsten atoms would have to be laid side by side to span a distance of 3.55 mm? atoms Submit Answer Retry Entire Group 9 more group attempts remaining

Q: (Review Topics] [Refe Use the References to access important values if neede A compound is found to…

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Q: The density of helium in a balloon is 1.18 g/L. If a balloon holds 2.89 L of He, how many atoms of…

A: Since mass of He = density X volume  density of He = 1.18 g/L Volume of balloon = 2.89 L => mass…

Q: a. Oxalic acid is a crystalline solid with the molecular formula H2C2O4. A sample of pure oxalic…

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Q: Oxygen is a _______ and therefore _______ when it forms an ion   A. nonmetal;       loses…

A: Oxygen is a nonmetal element.

Q: [Review Topics] [Relo Use the References to access important values If needed for this ouestton A…

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Q: Accordingly, which of the following statements is wrong?    A) The mass of an aluminum atom is…

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Q: What pattern exists between an atom's mass and its vertical position in the periodic table? What…

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Q: S Ina 3.7-gram sample, there are (A) 1.1 x 10 atoms of gold (B) 3.2 x 1025 atoms of gold (C) 4.4 x…

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Q: Calcium Chloride Element #1 Element #2

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Q: What came first? protons neutral Atoms or nuclei? which came second?

A: Given What came first? protons neutral Atoms or nuclei? which came second?

Q: Gold (Au) is one of a group of metals calledthe coinage metals (copper, silver, and gold). How many…

A: Solution :      Avogadro's number is defined as the number of particles present in one mole of the…

Q: How many elements are presently known? About how many occur naturally?

A: Periodic table contains 119 elements but the last elements 119 know as Ununennium or eka-francium is…

Q: Summarize indicating Thomson major contribution to the atomic theory.

A: The atom is the smallest unit of particle that used in a chemical reaction.

Q: Define atomic number, mass number, isotope, atomicmass, and mole.

A: Anything that occupy space and has mass is called matter which  is made up of atoms. Atoms are…

Q: One atom of an unknown element has a mass of6.66 × 1 0 -23 g. What is the identity of this element?

A: Molar mass is the mass of Avogadro's number (6.022×1023) atoms.

Q: How many atoms of Helium can a balloon that has a 25 cm diameter hold? The density of Helium is 1.18…

A: The mole (abbreviated mol) is the SI measure of quantity of a “chemical entity,” such as atoms,…

Q: 18 ic weights are based on the Atomic Elements 1995 publishedby IUPAC Не 13 14 15 16 17 4.003 6. 10…

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Q: what is the mass element of calcium?

A: Mass of an element is represented by A in symbolic representation of element.

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: This can be calculated by finding the total distance divided by diameter of one atom.

Q: Summarize indicating Dalton major contribution to the atomic theory.

A: Dalton’s atomic theory was a scientific theory on the nature of matter put forward by the English…

Q: The compound adrenaline contains 59.00% C, 7.15% H, 26.20% O, and 7.65% N by mass. What is the…

A: Given: mass of each element 59 g of Carbon 7.15 g of Hydrogen 26.20 g of Oxygen 7.65 g of Nitrogen

Q: Lead (II) Nitrate Element #1 Element #2 Element #3

A: Chemical formula of lead nitrate is Pb(NO3)2 Atomic mass of Pb = 207g/mol Atomic mass of nitrogen =…

Q: A 0.610 mole sample of an element has a mass of 86.0 grams. Identify the element and enter its…

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Q: Calculate the atomic mass of naturally occurring chlorine if 77.62% of chlorine atoms are…

A: To calculate atomic mass of chlorine:

Q: How many atoms of He can a balloon that has a 19 cm diameter hold? The density of Helium is 1.18…

A: Given data,Diameter of balloon=19cmRadius of balloon=19cm2=9.5cmDensity of He=1.18g/L

Q: 1. All atoms of a given element have the same c. number of nucleons. d. number of protons. a. mass…

A: 1. Answer - The correct option is (d) number of proton. All atoms of an element have the same number…

Q: List eleven elements found on the periodic table which are gasses at room temperature. (Please note…

A: Inert elements, such as He, Ar, and Kr, Xe, and Rn, exists in the gaseous state due to their less…

Q: Sulfur’s average atomic mass is close to the wholenumber 32. Chlorine’s average atomic mass is…

A: Given information,     Sulfur’s average atomic mass is close to the whole number 32.     The…

Q: Classify each statement as an observation, a law, or a theory. If elements are listed in order of…

A: Observation is what is happening physically is observed through measurements. Law is made on the…

Q: Q find out mass 0 amam

A: Molality of the solution is equal to the number of moles of solute dissolved in one kilogram of…

Q: Zinc chloride Element #1 Element #2

A: Given, Zinc Chloride (ZnCl2)  Molar mass of Zn = 65.38 g/mol  Molar mass of Cl = 35.453 g/mol  Molar…

Q: [Review Topics] Use the References to access Important values If needed for this question, How many…

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Q: places explain/ give example. The law of multiple proportions ATOMIC STRUCTURE AND SYMBOLS…

A: The fundamental quantity of compound is element. A compound is made of many such elements that…

Q: An unknown element (Uk) has three isotopes, seen in the table. One of the percentage values is…

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Q: metal, or metal. Representative element (main Transition metal Inner-transition metal group element)…

A: Representative element ( main group element) - Se, At, Ra

Q: Isotopes (IMPORTANT NOTE: X= Symbol, A=mass number, Z = atomic number) Name Cobalt # of number…

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first three parts…

Q: 11. A substance whose formula is A20 (A is a mystery element) is 60.0% A and 40.0% O. Identify the…

A: We are authorized to answer one question at a time, since you have mentioned two questions, so we…

Q: How many atoms of He can a balloon that has a 15 cm diameter hold? The density of Helium is 1.18…

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Q: What is the mass of 11 cobalt (Co) atoms?  Cobalt info: Atomic Number 27, Mass Number 58.933

A: The question is based on mole concept. We have to determine mass of Cobalt in the given number of…

Q: Discuss the assertion between the observed value of atomic mass of lithium and it's true value

A: The mass of the atom is due to the nucleus. And the nucleus contains two sub atomic particles which…

Q: An ambitious student decides to count potassium atoms. He counts 2.01 * 10 to the 23rd power atoms…

A: Using the concept of avogadro number , and no. Of moles we can solve this problem.

Q: The element argon has three isotopes and an average atomic mass of 39.948 u. Idenitfy the most…

A: Given that, Average  Atomic mas s of At=39.948 amu

Q: 11) Calculate the number of atoms of each element: 5Na,SO,

A: according to mole concept one mole of any species contains avagadro number of atoms,  molecule and…

Q: Part A What is the mass of 5.08x1021 platinum atoms? • View Available Hint(s) V ΑΣφ m = Submit

A: 1- First calculate the moles of Pt atom :   We know that,  Moles = [ number of atoms / Avogadro…

Q: Calculate the number of atoms in sample. 0.082 g Sr

A: given sample is 0.082 g of Sr we know 1 mol has 6.022 × 1023 atoms

Q: Mass of magneisum before experiment is 0.33g   mass after is 0.49 g   Calculate the number of…

A: Number of moles = Mass in gram/Molar mass in gram/mole Given that: Mass of Magnesium = 0.33 g Mass…

Q: Determine which statements are consistent with Dalton's atomic theory. Inconsistent Consistent…

A: Given statements: Atoms of the same element have identical properties; atoms of the different…

Q: How many Si atoms are there in a 59.0 gram sample of Si ? atoms Submit Answer Retry Entire Group 9…

A: Given, mass of sample of Si = 59.0 g Number of Si atoms = ? Note: molar mass of Si = 28.09 g/mol

Q: An element´s relative mass, expressed in atomic mass units on the periodic table, is equal to its…

A: The mass of an atom can be expressed in different forms like molar mass,  relative mass, atomic mass…

Bond Parameters

Many factors decide the covalent bonding between atoms. Some of the bond parameters are bond angle, bond order, enthalpy, bond length, etc. These parameters decide what kind of bond will form in atoms. Hence it is crucial to understand these parameters in detail and understand how changing these parameters affects the kind of bonding or various characteristics.

Bond Dissociation Energy

The tendency of an atom to attract an electron is known as its electronegativity.