alculate the mass of an X atom, n

Q: What is distinctive about isotopes of elements, and why are they important?

A: The atomic number of an element is expressed as the number of protons and it is equal to the number…

Q: Differentiate between different isotopes of an element?

A: A number of atoms of some elements have been identified, which have the same atomic number but…

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: Distinguish between an element and an atom. NO PLAGIRISM

A: Atom is smallest repeating unit that can not be furAtoms are  composed of subatomic particles called…

Q: All the chemical elements may be derived from which single element?

A: All the chemical elements may be derived from one single element. That has to be given below.

Q: Sulfur forms several compounds with fluorine. Upon decomposition, sample one produces 4.45 g of…

A: Given information is:                   Sample 1 →Decomposition F(4.45grams) + S (1.25grams)…

Q: Which subatomic particle(s) are found in the nucleus of the atom? Enter the subatomic particle or…

A: To find : Which subatomic particles are found in the nucleus of the atom.

Q: Characterize elements and their isotopes.

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

Q: Differentiate between an atom, an element, and a molecule.

A: Element - are naturally occurring species  Atom-building block of molecule  Molecule - made up of…

Q: A theoretical element Z has two stable isotopes. One isotope is 42Z with a mass of 41.96 amu and a…

A: Mass spectrometry is an analytical tool useful for measuring the mass-to-charge ratio (m/z) of one…

Q: One molecule of caffeine contains 88 atoms of carbon, 1010 atoms of hydrogen, 44 atoms of nitrogen,…

A: Given: The number of carbon atoms, hydrogen atoms, nitrogen atoms and oxygen atoms present in a…

Q: A sample of chloroform is found to contain 12.0 g of carbon, 106.4 g of chlorine, and 1.01 g of…

A: Total mass of chloroform in first sample = mass of C + mass of H + mass of Cl = (12.0+106.4+1.01) =…

Q: The most abundant isotope of Hydrogen has a mass of 1 amu.  Therefore, the average atomic mass on…

A:

Q: Naturally occurring uranium consists of two isotopes, whose masses are shown below: Isotope Mass…

A:

Q: Bromine has an average atomic mass of 79.904 amu. If Br-79 has a mass of 78.92 amu and Br-81 has a…

A:

Q: is chlorine gas an element ?

A: The simplest chemical substance which made up of atoms with the same number of protons and it cannot…

Q: A 0.383 g sample of an element contains 1.943 × 10 21  atoms. What is the element symbol

A: Given, amount of sample =0.383 gnumber of atoms of the sample =1.943×1021 atomswe are asked to…

Q: Neon has three different isotopes.  90.51% of neon atoms have a mass of 19.992 amu.  0.27% of neon…

A:

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: A sample of silver contains 45.9 x 1027 atoms of silver. Find the mass of silver in kilograms.

A:

Q: A single atom of element Q has a mass of 1.09 x 10 -22 g. What is the name of the element Q?

A: Given : Mass of single atom of element = 1.09 X 10-22 g Assuming atomic mass of element is M.

Q: Name the element which has 26 electrons, 29 electrons, 26 protons

A: General way of element presentation:. AxZ where z is no. Of protons A is no. Of neutrons+protons

Q: A hypothetical element, X, has two isotopes: 47X with an isotopic mass of 47.621 amu and 51X with an…

A: The atomic mass of the element can be calculated as,

Q: What is the chemical element? X

A: Here we have asked about the information for the chemical element 'X'. We can tell about this as…

Q: True or false is an atom is the smallest building block of matter

A: False

Q: There are two isotopes of Beryllium: Be-9 and Be-11. A chemist examines a sample of 250 Beryllium…

A: If A1 , X1 and A2 , X2 are atomic mass and percentage abundance of two isotopes of an element then…

Q: What is the correct symbol for potassium?

A: The given element name is potassium.

Q: A 1.067 g sample of an element contains 5.062 × 1021 atoms. What is the element symbol?

A:

Q: Lithium is composed of two isotopes and the average atomic mass calculation is shown. redict the…

A:

Q: What will expected mass of atom that is 40Ar (it contains18 protons, 22 neutrons and 18 electrons)…

A: Final answer :- 39.948

Q: The mass of a neutron is 1.6749×10−24 gg , and the mass of a proton is 1.6726×10−24 gg . What is the…

A:

Q: what are isotopes

A: The different variants of a particular element, that are differed by the number of neutrons. In…

Q: There are two isotopes of Beryllium: Be-9 and Be-11. A chemist examines a sample of 250 Beryllium…

A: We are given average atomic mass and we have to find the number of isotopes present.

Q: Atom/ion Hydrogen atom (H) Oxide ion (0²-) Hydrogen ion (H+) Nitrogen atom (N) Nitride ion (N³-)…

A: The number of proton is equal to the atomic number of that element.  The no of proton is same as no…

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.