4 The smallest unit of 5. The nucleus is foun

Q: In what ways are isotopes are alike? In what ways are they different?

A: Isotopes are the atoms of same element having the same atomic number.

Q: Vhich of these foods would be most like the 'plum-pudding-model of the atom? A chocolate chip muffin…

A: Answer - Option (A) is correct. A chcolate chips muffin  Explanation - According to the question -…

Q: What is the mass number of an isotope with an atomic number of 56 and that has 75 neutrons?

A: Mass number is the atomic mass of an atom. It is the sum of no of protons and no of neutrons present…

Q: 24. What is the mass number of an isotope?

A: The chemical element consisting of the same number of electrons and protons in an atom but a…

Q: Mass Name Nuclear Symbol # Protons # Neutrons # Electrons Number selenide magnesium-26

A: The nucleus of  an atom consist of protons and neutrons where as electrons lie out site the nucleus.

Q: Determine the number of protons and the number of neutrons in isotope. 20882Pb

A: In 20882Pb :

Q: Besides number of neutrons, what else do isotopes of the same element have that is different?

A: Isotopes are the variation of chemical elements that have the same number of protons but a different…

Q: Which subatomic particle determines the atomic number?What determines the mass number?

A: Atom is the fundamental unit of a chemical compound or matter. An atom consists a nucleus in which…

Q: The isotope with 15 protons and 14 neutrons is? The isotope with 9 protons and 8 neutrons is? The…

A: As we know, Mass number of an atom = number of protons +the number of neutrons Atomic Number of an…

Q: What isotope has 18 protons and 22 neutrons?

A: Isotopes are different forms of same element, having same number of protons in the nucleus but…

Q: How many neutrons are in the nucleus of an atom that has an atomic mass of 36 and an atomic number…

A: We are given a atom, lets say X having atomic number 25 and Atomic mass = 36.

Q: Neutrons: O Have a relative mass of 1 and a charge of +1 O Have a relative mass of 0 and a charge of…

A: A neutron is a sub-atomic particle with no net electrostatic charge, with a very similar mass to a…

Q: "the atom with 38 protons and 49 neutrons"

A: Given,        Number of protons = 38         Number of neutrons = 49  Assume an atom is 'X'

Q: What charge does a neutron carry?

A: Neutron are neutral in nature hence neutron carry zero charge or no charge

Q: how many isotopes of bromine exist ?

A: Isotopes:The variants of a chemical element, which have same number of protons and differs in number…

Q: An isotope that contains 51 protons, 51 electrons, and 74 neutrons. What is its two notations?

A: Isotopes are those elements which have same atomic number but different mass number.   Atomic number…

Q: Antimony Sb has two stable isotopes 121 Sb (at mass 120.904 amu) with a natural abundance of 57.36 %…

A:

Q: For the 19O2- Isotope identify the number of Protons,  Neutrons,  Electrons

A: For a general element, XZA Z- atomic number = number of protons A- mass number = number of protons +…

Q: What is the mass number of an isotope

A: Mass number is equal to sum of mass of atomic number and number of neutron

Q: 28. Which of the following descriptions in incorrect? (1)A proton has a positive charge and is…

A: To find: The false statement: (1)A proton has a positive charge and is located in the nucleus (2)A…

Q: For an isotope that has 82 protons and 124 neutrons. What is the mass number (A) and what is the…

A: Given :- number of protons = 82               number of neutrons = 124  To be calculated :-  Mass…

Q: Does an isotope have the same number of protons or neutrons?

A: Isotopes = Element with same Atomic No but different atomic mass are termed as Isotope  e.g. Two…

Q: An isotope of uranium is 238U. How many protons, neutrons and electrons are in this isotope?

A: Atomic number (Z) is defined as number of protons present in an atom.  In a neutral atom number of…

Q: Gold has one stable isotope, whichis gold-197, with an atomic mass of 196.97amu. A 14k (14-karat)…

A: Given:   Mass of 14k gold =  5.00-g  Gold percentage  = 58.3%  Other metals        = 41.7% To find:…

Q: Explain how the isotopes of an element are alike and how they are different.

A: An atom is composed of protons, electrons, and neutrons. The protons and neutrons are present in the…

Q: How many neutrons are in the nucleus of the isotope at -210?

A: The mass number is comprised of neutrons and protons. Here, the number of protons will be obtained…

Q: For each of the following molecules, identify the number of ¹H NMR signals you expect to see and…

A:

Q: What is the mass number of an isotope with an atomic number of 57 and that has 72 neutrons?

A:

Q: A certain element consists of two stable isotopes.The first has a mass of 68.9 amu and a percent…

A: The objective of the question is to calculate the atomic weight of an element that has two stable…

Q: What would be the approximate mass of a particle that has 48 electrons, 46 neutrons and 52 protons?

A: No of electrons = 48 No of neutrons = 46 No of protons = 52

Q: An 18 O atom contains the same number of protons. neutrons, and electrons.

A: Given atom, 8O18

Q: Fill in the blanks. Isotope 25Mg2+ has: Number of protons Number of neutrons Number of electrons…

A: Given  Symbol of isotope    = Mg2+24 Number of proton    = ?  Number of neutron  = ?  Number of…

Q: What particles comprise the charge of the nucleus?

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

Q: What is the relationship between an isotope’s abundance in nature and an element’s atomic mass…

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