explain how we calculate the mass of an atom and why we write this down in atomic mass units

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: A sample of element X has two naturally occurring isotopes. The isotope X-45 makes up 35.8% of the…

A: Isotopes are species having same atomic number but different mass number.  Given: The percentage of…

Q: Calculate the mass, in grams, of each sample.a. 1.1 * 1023 gold atomsb. 2.82 * 1022 helium atomsc.…

A: Given data: Avogadro's number NA, 6.023×1023atoms Convert first the number of atoms to moles using…

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

A: The data given is,

Q: Describe the process of determining the number of Subatomic particles in Atoms?

A: An atom is the smallest invisible and indivisible particle of matter. However, an atom still…

Q: Answer the questions with the definition and show with a figure where this information is found in…

A: Atomic number : The number of a chemical element in the periodic system, whereby the elements are…

Q: Using the periodic table or other resources to determine what the differences are between Polonium…

A:

Q: Calculate the mass for one nitrogen atom. Note: you can choose more than one answer. 2.33 x 10-23…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

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: Describe the general structure of an atom and its isotopes.

A: Atom is the basic unit of matter it consists of a heavy positive mass at its center called the…

Q: e terms atomic number, mass number, and atomic mass. Then, (ii) explain what isotopes are and (iii)…

A:

Q: mass

A: Atomic mass of F2 atom = 35.994 u  It's relative atomic mass is give 36.0000 u

Q: The mass number of an atom is equal to the sum of which subatomic particles.

A: An atom is the smallest unit of ordinary matter that forms a chemical element and which can not be…

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: Is it possible for 2 Carbon atoms to have different mass numbers? How?

A: Yes, it is possible for 2 Carbon atoms to have different mass numbers.

Q: Calculate the number of atoms in sample. 14.955 g Cr

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: How is the mass number related to the number of protons and neutrons an atom has?

A: The nucleus of an atom contains three sub-atomic particles. These are protons, neutrons and…

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: Describe the structure of the atom, including the locations of the subatomic particles.

A: The atomic structure means that how and where  the sub-atomic particles are arranged inside the…

Q: What particles are found in the nucleus of an atom? What is the charge of the nucleus?

A: Sub-atomic particles are the particles that are present inside the atom. Three sub-atomic particles…

Q: How much (in atomic mass units, amu) would 78 atoms of an element with atomic mass 107.18 weigh?…

A:

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: Two isotopes of boron occur naturally, with B at 19.90 % (10.01 amu) and B at 80.10 % (11.01 amu). ▼…

A: We knew that the avarage weight of any element is equal to avarage weights of all naturally…

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: Calculate the mass of 500. atoms of  fluorine (F). Mass =______  g

A: One mole of a substance is equal to 6.023 x 1023 units of that substance  (such as atoms, ions or…

Q: What is the atomic weight of copper

A: The atomic number (Z) of a chemical element is tells that the number of protons in the element.

Q: 5- Atoms of the same element with different mass numbers are called..

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Q: Calculate the number of atoms of Zn in a sample with mass = 2811 amu.

A: We have to predict the number of atoms of Zn.

Q: Determine the number of subatomic particles of an atom given its mass number and

A: Either one of the thing is given atomic mass/ atomic no/ no of electron/proton/neutron or  name or…

Q: Calculate the number of atoms there are in a sample of aluminum that with a mass of 81g

A: Given that:  Mass of Aluminium(Al) = 81g  Molar mass of Aluminium = 27g/mol So, moles of Al =…

Q: Explain the difference between the mass number and theatomic mass of an element.

A: THE DIFFERENCE IS DISCUSSED BELOW :

Q: What is the atomic weight of Nitrogen?

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

Q: Which statement about subatomic particles are true? Electrons are attracted to protons.

A: Electrons are negatively charge and protons are positively change particle, so by this opposite…

Q: An element has three isotopes, A, B, and C. Atomic masses and percent abundances of the three…

A: The concept is to calculate the average atomic mass of an element.The elements having same atomic…

Q: Find the average atomic mass for Li if 7.5 % of Li atoms are 6Li with a mass of 6.015 amu and 92.5%…

A: The average atomic mass of any element is the sum of product of mass of each isotope and their…

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: Chemists generally use the term atomic weight rather than average atomic mass. We state in the text…

A: 1. Atomic mass indicates mass of an atom. Single atom has set of protons , neutrons and electrons.…

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 are the charge and mass of?:  a)  a singly ionized sodium atom, Na2+ (??????: 2311??, ????=…

A:

Q: Calculate the mass of 1.23×10241.23×1024 helium atoms.

A: 1 mole of a substance contains Avogadro number of atoms.

Q: mass

A: This question is related to atomic mass.

Q: What are the symbol and name for an element whose average atoms have a mass that is 38.8% of the…

A: mass of an average Chromium atom =51.9961 u Now we have to calculate 38.8% of the mass of an average…

Q: This is the average of the atomic masses of all the different isotopes in a sample.

A: We are to discuss what the average of the atomic masses of all different isotopes of an element in a…

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: Enter your answer in the provided box. Determine the mass number of a sodium atom with 12 neutrons.

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

Q: Naturally occurring magnesium has the following isotopicabundances:

A: The atomic mass of magnesium has to be calculated. Average atomic mass of the element is calculated…

Q: What is the average mass of a single aluminum atom in grams

A: We know that mass of 1 mole of Aluminium atoms is equal to 27g Also 1 mole of aluminum atoms means…

Q: True or False...and why? a.) If you change number of protons, you have isotopes of an element b.)…

A: Given: a.) If you change number of protons, you have isotopes of an element b.) If you change number…

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.