How many neutrons are present in the following isotopes of carbon? C-11, C-12, C-13 and C-14

Q: "An neutral atom of 94Be has_____ protons, ____ electrons, and _____ neutrons."     4, 5, 4…

A: The atom given is 94Be.

Q: Bromine is the only nonmetal that is a liquid at room temperature. Consider the isotope bromine-81,…

A: The isotope given is 8135Br.

Q: In any charged ion there are unequal numbers of A) neutrons and electrons B)positrons and…

A: In the neutral state of an element Or atom, there are equal numbers of protons and electrons, but…

Q: Determine the isotope symbol that fits each description. Ag 76 a. 68 neutrons, 47 electrons b. mass…

A: Since you have asked multiple question we will solve the first one for you. If you want answer to a…

Q: How many neutrons are in an atom of 40K? Select one: O a. 21 O b. 40 Ос. C. 39 O d. 20 O e. 19 O O O

A: 1. Answer :- a) 21  Number of Neutrons in  40K = 21…

Q: Write the atomic symbolAZX for each of the isotopes described below.a. number of protons = 27,…

A: Since you have posted multiple sub-parts, the answer for first three sub-parts are given below.…

Q: n organic chemist wants to make a new molecule to test as an anti-cancer drug. The drug needs to be…

A: A fluorescent marker, also known as a fluorescent mark or fluorescent probe in molecular biology and…

Q: ☆回 G Add-ons Help Last edit was 4 minutes ago в I U A 三|ニ Calibri 11 Q4) consider the element Xy…

A:

Q: An unknown element has two naturally occurring isotopes. Isotope 1 has a mass of 119.0 amu and an…

A: Average mass of an element is defined as the atomic mass of the element calculated by multiplying…

Q: choose the correct answer.   36. Which of these represents an ion? *

A: Atomic number of an element is equal to number of protons present in nucleus of atom of that…

Q: In which ways can isotopes differ? Select all the possible ways. C a. Size b. Atomic Number c.…

A:

Q: All of the following are true of a neutron EXCEPT Group of answer choices A, negatively charged B,…

A: Neutrons are neutrally charged. So the answer is: Option A. negatively charged

Q: A bromine atom has an atomic number of 35 and an atomic mass of 80. What is the structure of this…

A:

Q: MCQ 33: Neutrons (nº) are neutral and carry A. positive charge B. negative charge C. no charge D.…

A: The particles in an atom which has neutral charge are known as neutron. This particles are…

Q: Isotope a mass amu nd Li with a mass of 7.0160040 amu. What are the percent isotopic abundances of…

A: Let there is x percent abundance of 6 Li and 100-x percent abundance of 7 Li

Q: The nucleus of an atom contains protons and neutrons Select one: O True O False

A: Matter is made of the basic units called atoms. It is in turn made of several sub-atomic particles…

Q: A sample of element X contains 90% X-35, 8.0% X-37, and 2.0% X-38 atoms. The average atomic mass…

A: The average mass of n isotopes can be calculated as: Average atomic mass = ∑i=1n  pimipi =…

Q: Isotopes have the same number of protons and electrons as the element but different  number of…

A: An atom is made up of three subatomic particles-neutrons, protons, and electrons. Neutron and…

Q: A naturally occurring sample of an element contains only twoisotopes. The first isotope has a mass…

A: % of first isotope = 60.11 % Mass of first isotope = 68.9255 amu Mass of second isotope = 70.9247…

Q: How many neutrons are present in an atom of tin that has an atomic number of 50 and a mass number of…

A: Atomic number is given by the number of protons present in the element. It is also known as proton…

Q: Consider the element Work (Wr) with an atomic number of 33 and an atomic mass of 81.03 g/mol. The…

A: Atomic number of work = 33  So, Number of protons = number of electrons = 33 Number of neutrons =…

Q: 1. What particles are located in the nucleus? protons and nutrons 2. What particles orbit around the…

A: As you have not asked which question you want us to solve, hence we are solving all the questions…

Q: Part A Given the following: x, X, X, and X. Which are isotopes of each other? x. X. x. and 2x are…

A:

Q: Find the atomic weight Isotope Atomic mass (u) Natural Abundance (%) Li-6 6.02 7.5 Li-7 7.02 92.5

A: Calculation of average masse of lithium:

Q: A naturally occurring sample of an element contains only two isotopes. The first isotope has a mass…

A: The atomic mass of an element is defined as the weighted average mass approximately equal to the…

Q: A naturally occurring sample of an element contains only two isotopes. The first isotope has a mass…

A: Given:-  Mass of first isotope = 68.9255amu  Natural abundance = 60.11%  Mass of second isotope =…

Q: Jse the periodic table to find the numbers of protons, neutrons, and electrons for atoms of the…

A: Fill the column with suitable number and Symbol of element.

Q: Which of the following is the least massive?  a. A neutron b. A proton c. An alpha particle d.…

A:

Q: Draw an atom with 2 protons, 2 electrons and 2 neutrons inside the box. Color and label its parts.

A: Q. Draw an atom with 2 proton, 2 electrons and 2 neutrons inside the box. Answer :         An atom…

Q: Question 1 What is the proper definition of an isotope? Group of answer choices A. Atoms that…

A: Nuclear chemistry deals with the reactions involving in the nucleus of an atom. The nucleus of an…

Q: * Question 31 If you add an additional neutron to an atom, what do you create? A an isotope an ion a…

A:

Q: Sand, which is used in making glass, is formed mainly of the compound silica (a compound formed…

A:

Q: Isotopic abundance (3 decimal places) No. of No. of Atomic A. Element Isotope neutrons mass (u)…

A:

Q: Choose the appropriate pair of atoms that contain the same number of neutrons. (Example: ^13 6C =…

A: The number written on top left of the atom is known as mass number of atom. And the number written…

Q: Select all of the following that are isotopes of 28Si.  Group of answer choices 29Si An atom with…

A: Concept introduction. Isotopes are the substance having same atomic number but different atomic…

Q: Which element labeled A-E in the periodic table below will have an onic charge of -1? |A B IC D…

A:

Q: An element (M) has two stable isotopes and has an average atomic mass of 85.1 au. One of the 87M,…

A: Given that,  Average atomic mass of element Mm = 85.1 au Atomic mass of one isotope 87Mm with 27.8%…

Q: An atom has two isotopes. the first isotope has a mass of 80.92 amu and a fractional abundance of…

A: The element's atomic mass existing in numbers of isotopes is dependent of each isotope's mass. This…

Q: Alpha particles are identical to   Question 12 options:   a)  hydrogen atoms.   b)  electrons.…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Select all the atoms below that are ions. O Atom 1: 5 protons, 6 neutrons, 5 electrons 9. O Atom 2:…

A: In ions , number of electrons is not equal to the number of protons as they are not electrically…

Q: 37.) Consider particle A with a mass number of 62, atomic number 32 and an ionic charge of +2.…

A: Atomic number: The atomic number (represented by the letter Z) of an element is the number of…

Q: How many neutrons are present in the following isotopes of carbon? C-11, C-12, C-13 and C-14

A: Number of neutrons = mass number - atomic number  Atomic number = number of electrons or number of…

Q: Which of the following has no neutron?  a. einsteinium b. helium c. hydrogen d. potassium

A: Every element is made up of a very tiny, indivisible particle known as atom. While an atom is made…

Q: 2. (a) Determine the mass number of a nucleus whose radius is approximately equal to two-thirds the…

A: Radius of new element is two third of the radius of Ra-230. Here, we have to find the name of new…

Q: In the following figure below, what is the'number of neutron, proton, electron, atomic number, mass…

A: Atomic number is defined as the number of protons or number of electrons present in an atom while…

Q: Colbalt -61 is used in the medical treatment of cancer. How many neutrons and protons are contained…

A: Given, Cobalt -61 is used in the medical treatment of cancer.we are asked to determine the number of…

Q: Which of the following represents a pair of isotopes? Atom I Atom II Atomic Mass Atomic Mass number…

A: Isotopes have same atomic number but different mass number

Q: 11. Which best describes isotopes? a. Same number of neutrons, different number of electrons b. Same…

A: Isotope having same atomic number but different mass number.  metal loose electrons and form cation…

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.