What is the atomic weight of copper

Q: What is an Atomic Number?

A: Atomic number  It is represented by the symbol Z. It is the number of protons present in the nucleus…

Q: what is used to determine an atom's weight and atomic number?

A: There are several use of atomic number and atomic weight of any atom as__ A=Z +n  Where  A is atomic…

Q: Explain clearly what is meant by the statement “The atomic mass of gold is 197.0 amu.”

A: “The atomic mass of gold is 197.0 amu.” The explanation of the above statement has to be given…

Q: Calculate the average atomic mass

A:

Q: Use the information given below to calculate the average atomic mass of element X.

A: The data given is,

Q: What is the atomic mass of oxygen-17 (16.9991 amu) at 0.038%

A: Using the formula We can easily get the answer

Q: What is the mass of 5.10*10^21 platinum atoms?

A: A mole represents 6.022x1023 particlesThe 6.022x1023 Number is also known as Avogdro's Number .It…

Q: How many atoms are contained in a titanium sphere having a diameter of 4.00 mm? The density of…

A: Given : density of titanium = 4.506 g/cm3  And diameter of sphere = 4.00 mm  Since 1 cm = 10 mm…

Q: In a sample of gallium there is 60.2% of gallium-69 (68.9 amu) atoms and 39.8% of gallium-71 (70.9…

A:

Q: e average atomic mass

A:

Q: A sample of aluminum foil contains 7.80×10^23 atoms. What is the mass of the foil?

A: A sample of aluminum foil contains 7.80×1023 atoms. The mass of the foil is to be calculated.

Q: Define mass number

A: Solution- Mass number - The sum of the Neutrons and protons present in the an atom is called mass…

Q: What is atomic weight?

A: The Matter is composed of the smallest unit known as an atom. The atom has 3 subatomic particles…

Q: What is the mass of 100 platinum atoms?

A: Atomic mass, the amount of matter found in the element atom. It is expressed as a multiple of…

Q: What is the atomic mass of silver

A: Silver is a chemical compound with the formula Ag (from Latin argentum, and atomic number 47). It is…

Q: A sample of aluminum foil contains 4.50×1023 atoms.4.50×1023 atoms. What is the mass of the foil?

A: Given,  Number of atoms of Al foil = 4.50 x 1023 atoms  Mass of the Al foil = ?

Q: Show how the mass spectrometer could be used to determine the relative atomic mass of an atom

A: Introduction: Mass spectrometer is a technique that is used to measure the mass to charge ratio of…

Q: Which elements make up about 99% of the mass of living things?

A: Elements are very important for the maintenance of biological life. For example sodium and potassium…

Q: Which element accounts for roughly 75% of the observed mass of the universe? Which four elements…

A: Hydrogen is the most abundant element in the universe which aaccounts for roughly 75% of the…

Q: What is atomicity

A: Atomicity is a term which is used to represent the number of atoms present in any molecule or…

Q: 6. What is electrical charge?

A: The definition of electric charge has to be given,

Q: Explain why atomic masses are not whole numbers.

A: The atomic masses are an important quantity of each element. Each element of the periodic table will…

Q: What does the nucleus of an atom consists of?

A: In an atom, three fundamental particles are present, proton, electron, and neutron.

Q: what is the gram atomic mass of zinc? 1.33 g, 30. g, 130. g

A:

Q: Calculate the average mass, in grams, of one platinum atom.

A:

Q: What is atomic mass? How is it calculated?

A: Atoms are the smallest constituents of a chemical compound and the atoms do not have independent…

Q: A 20.0 g sample of an element contains 4.95 * 1023 atoms. Identify the element.a) Cr…

A: The element has to be identified.

Q: How would you determine the accuracy of an atomic mass?

A: The atomic mass is a weighted average of all of the isotopes of that element, in which the mass of…

Q: Consider two compounds. Compound A contains 2.77 g of phosphorus and 9.53 g of chlorine. Compound B…

A: Given,Mass of Phosphorus in compound B =11.9gMass of chlorine in compound B =40.9g

Q: explain how to get the atomic symbol

A: Atomic symbol is way of representation of a particular element that makes easy handling of elements…

Q: Define atomic mass

A: The basic unit of matter is an atom. The physical and chemical nature of an atom is defined by its…

Q: What is the atomic weight of Nitrogen?

A: Given Nitrogen Atom. We need to determine the atomic weight of Nitrogen.

Q: Consider the table below. What is the relative abundance of isotope A? Isotope Abundance A 65 B 115…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: what is the mass of 7.15 x 10^22 aluminum atoms?

A: Given, Number of Aluminium atoms = 7.15×1022

Q: The atomic weight of Aluminum elemen

A: 1mol = 6.022 x1023 electrons  Given that  Atomic mass of Al = 26.981 g/mol  Atomic number of Al =…

Q: What is the atomic weight of the element chlorine?

A: Average atomic weight of chlorine element is 35.5 amu. Chlorine atom has two isotopes Cl35 and Cl37…

Q: Describe what you think happens on an atomic scale when you push a pencil across a piece of paper…

A:

Q: In ions why not separated by mass only and  why not separated by charge only?

A: Mass spectrometer works in four stages which is ionisation, acceleration, Deflection and detection.…

Q: Element "X" has a mass# of 53. How many neutrons does it have if its atomic# is 27

A: According to the answering guidelines, I'm posting the solution for the first question. Kindly post…

Q: Distinguish isotopes and calculate atomic weight

A: An atom consists of three sub-atomic particles known as electrons, protons and neutrons. The number…

Q: What is the mass number of Hg from the periodic table?

A: Answer:- Mass number:- It is defined as the total number of proton and neutron or can be defined as…

Q: A sample of aluminum foil contains 8.00×10^23 atoms. What is the mass of the foil? mass of foil…

A: The number of moles for a given compound or a molecule refers to the ratio of its mass to the…

Q: How many electrons are necessary to produce a charge of -1.0 C? What is the mass of this many…

A: SOLUTION: Step 1: An electron has a charge of -1.6 ×10-19 C. The no of electrons necessary to…

Q: What is the mass of (2.66x10^21) platinum atoms?

A: Given, Number of Platinum atoms = 2.66×1021

Q: Bronze medals are made from an alloy composed of 93.8% copper, 5.1% tin, and 1.1% zinc (measured by…

A: Given : Mass % of copper = 93.8 % mass % of tin = 5.1 %  and mass % of Zinc = 1.1 % Assuming 100 g…

Q: How many atoms are contained in a titanium sphere having a diameter of 12.0 mm? The density of…

A:

Q: When the Number of Neutrons Varies?

A: Atomic number (Z)- the number of protons or electrons present in an atom of element called as atomic…

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.