13. Which of the following are isotopes? a. P3- and Ar b. 1251 and 127| c. O and O2- d. Na* and K* e. S and CI

Q: Silicon has three common isotopes, with the masses and isotopic abundances shown below: Silicon-28…

A:

Q: 30 si Use the atomic masses on the table below to calculate Am for the change 14 2 "N. u Which is…

A: The reaction given is, =>

Q: Bromine has two naturally occurring isotopes, Br-79 and Br-81. Given that on the planet Saturn the…

A: To determine which of the isotope is the most abundant on Saturn.

Q: A certain element X has four isotopes. 0.5600% of Xhas a mass of 83.91343amu. 9.860% of Xhas a mass…

A: Since element X is an isotope. Isotopes are that element which has the same atomic number but has…

Q: 8) What kind of formular is C,H,O, consider as? A) Empirical formula B) Moleculr formula C)…

A: Protons and neutrons are present inside the nucleus and electrons are revolving around the nucleus…

Q: n your own words, define or explain these termsor symbols: (a) ; (b) particle; (c) isotope; (d) ;(e)…

A: Chemistry is the study of elements and compounds comprised of atoms, molecules or ions. It involves…

Q: ilicon has three common isotopes, with the masses and isotopic abundances shown elow: licon-28 --->…

A: Given-> M1= 27.98 u.        P1=0.882% M2=28.98u.           P2=0.018% M3=29.97 u.

Q: 2.5 million atoms of particular element have a mass of 8.33X10^-16 grams. What is this element?

A:

Q: an abundance of 2.365%. What is the abundance of the first isotoper a. 4.479% b. 6.957% d. 80.913%…

A:

Q: Common brass is a copper and zinc alloy containing 37.0% zinc by mass and having a density of 8.48…

A: Volume of brass 115.5 cm3convert this volume of brass into mass using density(d) = 8.48 g/cm3density…

Q: QUESTION 10 The element boron has twa naturally occuming isotopes with masses of 10.0129 amu and…

A: The atom consists of 3 subatomic particles: Protons: They are positively charged particles present…

Q: (c) Calculate the mass percent of protons in the nucleus of each of these isotopes. % of protons in…

A: The isotopes given are 105B and 115B.

Q: What are isotopes? What is the percent natural abundance of isotopes?

A: Isotopes are stable as well as radioactive in nature.

Q: How are isotopes of a particular element alike? How are they different?

A: Isotopes are atoms of the same element that have different numbers of neutrons but the same number…

Q: The mass of a single niobium atom is 1.54×10-22grams. How many niobium atoms would there be in a…

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

Q: An element has three naturally occuring isotopes with the following masses and abundances…

A: This element is Silicon as the data provided within the question is relevent to the Silicon Element

Q: 2T) A comprnd Cim 15 5.१५°% Olygen is 5.9496 mass of this com A) what Is the B) what IS the

A: Percentage of hydrogen = 5.94 %  Percentage of oxygen = 94.06 % Molar mass of compound = 87.55 g/mol

Q: Where are particles with virtually no mass found in the atom? A. The electron cloud B. Inside the…

A: Ans  A)  The electron cloud .

Q: The density of copper is 8.96 g/cm3. How many copper atoms are in a sphere with a volume of 0.475…

A: Mass = Volume x density Number of moles = Mass in gram/Molar mass Number of atoms = Number of moles…

Q: The isotope of Nitrogen with a mass of 15amu is written as _? The isotope of Uranium with a mass of…

A:

Q: 5.) Usina ave rage atomic massos elenents ai125 carbon for ,calculatie the meess of each atoms b.5…

A: ***As per Bartleby's guidelines, I can solve only the first three questions. You can resubmit the…

Q: Hi. How do I calculate weighted average atomic mass from isotope data?

A:

Q: Copper has two naturally occurring isotopes with atomic masses of 62.9296 u (C u) and 64.9278 u…

A: When two atoms have same atomic number and different atomic mass, such atoms are called isotopes.…

Q: ? + 4Ni→7Rg+¿n Express your answer as an isotope or a particle. 28

A: In a balanced nuclear reaction, number of protons and number of neutrons on either side of the…

Q: A cube of gold that is 1.00 cm on a side has a mass of 19.3 g.A single gold atom has a mass of 197.0…

A: Atoms are packed orderly in a defined crystal lattice that is assumed to have any shape such as…

Q: The image shows a representative sample of 50 atoms of a fictious element, called lemonium (Le).…

A: The average atomic mass of an element with three isotopes is given by  Avg atomic mass =…

Q: Naturally occurring elements are originally formed: O A. Inside the core of stars, or when stars…

A: Naturally occurring elements as the name suggest, it is formed naturally not by any man made actions

Q: Which of the following statement concerning the nucleus is NOT true? A) The density of a nucleus…

A: The nucleus is the positively charged center in an atom that contains protons and neutrons. The…

Q: ny atoms c

A:

Q: Thallium has two stable isotopes, 203TIand 205TI. Knowing that the atomic weight of thallium is…

A:

Q: The element silver has two naturally occurring isotopes: 109Ag and 107Ag with a mass of 106.905 amu.…

A: The mass of 109Ag is to be calculated.

Q: How many isotopes does this element have?

A: From the graph, it is cleared that the number of isotopes of the unknown element is 5.

Q: 410 186 412Z X 410 183 Y 186 Which two are isotopes? A. X and Y B. X and R C. Y and R D. Z and R E.…

A:

Q: Bromine has two naturally occurring isotopes. One of them, bromine-79, has a mass of 78.918 amu and…

A: Given: There are two naturally occurring isotopes of bromine. Mass of isotope 1 i.e. bromine 79 =…

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

A:

Q: Choose between parentheses 1-According to Dalton’s Theory Principles, All matter is composed of…

A: 1. According to Dalton’s Theory Principles, All matter is composed of extremely small particles…

Q: 19) The fact that water is 11.2 % hydroen and 88.8 % oxygen by mass regardless of its origin is an…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Give a Characteristics of an Atomic?

A: Solution-   An atom has three subatomic particles The nucleus has a well-charged atomic center and…

Q: Naturally occurring iodine has an atomic mass of 126.9045 amu. A 12.3849 g sample of iodine is…

A:

Q: the isotope Si-28 has a mass of 27.977amu .Calculate the number of moles in 14 grams of Si-28

A: We will use the formula to calculate number of mole Number of moles = Weight (g) / Molar mass Molar…

Q: Which of the following statements is correct? A The mass of 1 mole of C-12 is 12.01 g The isotope…

A:

Q: by An isotope of element B has hal. us many protons and half as many neutrons as an atom of 48TI.…

A: 3. Ans :-  An isotope of element B has half as many protons and half as many neutrons as an atom of…

Q: 100% Normal text Oxygen 12 ... 3. The atomic masses of elements are generally not whole numbers.…

A: Concept is based on isotopes:     As per our guideline we have to answer first question only.

Q: Question attached

A: Isotopes are variants of a particular chemical element which differ in neutron number, and…

Q: d. What is the % composition of carbon in Excedrin? e. What is the % composition of hydrogen in…

A: From the formula of excedrin, C25H27N5O8, the number of moles of each of the elements is indicated.,…

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.