What is difference between Atomic mass & Mass nиmber

Q: Which subatomic particle was discovered by researchers working with cathode-ray tubes?

A: Cathode ray tube experiment Cathode ray tubes are sealed glass tubes are sealed glass tubes that are…

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: What is the mass of 4.91×10214.91×1021 platinum atoms?

A: For  calculating the mass of substance , we have the governing equation  m=NA×Molecular weight ,…

Q: Some chlorine atoms have an atomic mass of 37, while others have an atomic mass of 35. What is the…

A: The mass number of an atom is the sum of proton and neutrons present in that atom.  Mass number =…

Q: What are isotopes and how are they related to the atomic weight?

A: Isotopes are the compounds with same atomic number but different mass number. They have same number…

Q: Fill in the blanks. Isotope 30Si4+ has: Number of protons Number of neutrons Number of electrons…

A: Given  Symbol of isotope  = Si4+30 Number of proton   = ?  Number of neutron = ?  Number of electron…

Q: Explain the difference between Z (the atomic number) and A (the mass number)?

A: Concept introduction: Atomic number and mass number are the basic properties of element. An atom…

Q: List the three subatomic particles that compose atoms and give thebasic properties (mass and charge)…

A: An atom is made of three subatomic particles namely, protons, electrons, and neutrons. The protons…

Q: e average atomic mass

A:

Q: Arrange the following subatomic particles in order ofincreasing mass: neutron, electron, and proton.

A: The masses of neutron, proton, and electron are; mneutron=1.67493×10-27 kgmproton=1.67262×10-27…

Q: Characterize elements and their isotopes.

A: Due to the discovery of various elements, it was very difficult to organize and study the…

Q: What is the difference between the atomic mass and the atomic weight?

A:

Q: What factors have led to changes in atomic mass since 1910?

A: Atomic Mass - It is basically the mass of an atom.

Q: A helium nucleus has two protons and two neutrons. How many electrons does it take to equal the mass…

A:

Q: Fill in the blanks. Isotope 76AS3- has: Number of protons Number of neutrons Number of electrons…

A:

Q: What is the mass of each isotope?

A: Isotopes are atoms of same elements which have same atomic number but different mass number. In…

Q: For the atom with mass 107.90389 u, determine(a) the numbers of protons, neutrons, and electronsin…

A: The atom with mass of 107.90389 u is 46Pd108. Thus the atomic mass of the element is 108 and atomic…

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: How are isotopes depicted in an atomic symbol?

A:

Q: What are the basic components of an atom?

A: Atom can be described as the building block of the chemistry where it is the smallest indivisible…

Q: Define one atomic mass unit (amu).

A:

Q: How many electrons does it take to equal the mass of a proton?

A: An atom is made up of three subatomic particles. These are known as protons and neutrons that are…

Q: In a sample of nitrogen, there is 99.63% N-14 atoms and 0.37% of N-15 atoms. What is the atomic mass…

A:

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: Isotopes have different atomic numbers but same mass numbers. (True / False)

A: Isotopes:  Atoms having the same number of protons (Z) but different number of neutrons (N) are…

Q: What are the different mass numbers of Isotopes ?

A: Different mass numbers of Isotopes are explained below,

Q: what are the Similarities of atomic mass and atomic numbers?

A: Atomic mass is associated with the number of neutrons and protons that are present in a particular…

Q: The nucleus of an atom contains 56 neutrons.  The atom contains 43 electrons.  What element is it…

A: Given, Number of neutrons = 56 Number of electrons = 43 To calculate the mass number and to find…

Q: How many electrons would it take to equal the mass of aproton?

A:

Q: Name and describe the components of an atom

A: Atom is the basic unit of matter All the matter in this universe is made of atoms.

Q: What is the mass number of an isotope?

A: Isotopes are those atoms which having same elements and they are having protons of same number and…

Q: How many electrons, protons, and neutrons are there in an atom ofa40Ca?

A: In the atom 40 Ca,  Atomic number = 40  So, proton number = 40  As it is neutral so,  Electron…

Q: How do the terms atomic mass and atomic weight differ?

A: Atomic mass and atomic weight, both the terms are used for measurement of its quantity.

Q: What are the main components of an atom ?

A: The main components of an atoms has to be given.

Q: What is mass number of a Ne atom that has 14 neutrons?

A: Symbol of an element as listed in periodic table has two numerals written with it. The one on…

Q: How many electrons belong to a neutral atom with an atomic mass of 39 amu?

A: Atomic mass is a sum total of all the protons + neutrons in a neutral atom.In a neutral atom the…

Q: How to determine the mass number of an atom given the atomic mass (amu)?

A: Mass number is the sum of total number of protons and neutrons in an atomic nucleus.

Q: What is the difference between mass number and atomic number?

A: Atomic number:The atomic number of the element is the number of protons present in that element.Mass…

Q: what element has 27 electrons and 29 neutrons ?

A: Element consist of Atoms. Atoms may consist of subatomic particle that is electron, proton and…

Q: What particles comprise the charge of the nucleus?

A: To find : What particles comprise the charge of the nucleus.

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…

Q: What is the difference between the mass number and the atomic number of an atom?

A: Mass number represents the sum of protons and neutrons present inside the nucleus of an atom.

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.