34. The nucleus of an atom contains 56 neutrons. The atom contains 43 electrons. What element is it and what is the mass number of the isotope?

Q: m atom c

A: Atom is the small particle of matter and made up of three fundamental particles which are known as…

Q: Calculate number of protons, neutrons and electrons present in isotopes of 35Chlorine and…

A: Atomic number = Number of protons Atomic mass  = number of protons + number of neutrons. Number of…

Q: 72 For the elemental symbol Ge, how many neutrons are present?

A: We are given  G3272e mass number=72 Atomic number=32 atomic number = number of proton=32

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 is the mass number and atomic number of a chlorine atom that has 17 protons amd 18 neutrons?

A: Given that, chlorine atom that has 17 protons amd 18 neutrons then,

Q: The atomic number of nitrogen is 7. What is the mass number of a nitrogen atom with 6 neutrons?

A:

Q: A sample of element Z has two naturally occurring isotopes.  The isotope Z-24 makes up 68.9% of the…

A: Interpretation: We have to calculate average atomic mass.

Q: A sample of an element has three isotopes: X with a mass of 18.321 amu and percent abundance of…

A: The average atomic mass of an element that has three isotopes is the fractional abundance of X times…

Q: Fill in the blanks. The subatomic particle _____________ lacks a charge and are located in…

A: Subatomic particles are neutron , proton and electron in which electron has -ve charge proton has…

Q: atomic

A: Isotope is iodine and it's symbols is " I "  1)  53I127  2) 53I125  3) 53I120

Q: The relative atomic mass of antimony is 121,8. Antimony exists as two isotopes - antimony 121 and…

A: Given, The relative atomic mass of antimony is 121.8 and it's two isotopes  antimony 121 and…

Q: Q the number of protons in the nucleus of an atom is 8, while the number of neutrons in the nucleus…

A: zXA   where  X = Element Z = atomic number = no. of protons  A = Mass number    and A = p + n  p =…

Q: A natural sample of chromium, taken from the ground,will contain four isotopes: Cr-50, Cr-52, Cr-53,…

A: Chromium has four stable isotopes which are Cr-50, Cr-52, Cr-53, and Cr-54. Isotopes are the atoms…

Q: 38. A helium nucleus has two protons and two neutrons. How many electrons would it take to equal the…

A: The given nucleus is He, number of proton = 2 Number of neutron = 2 Number of electron = 2 The…

Q: An atom has a mass of 52 amu and 24 electrons. How many neutrons are in this atom?

A: Neutron is a subatomic particle which do not contains any charge and is neutral. It is denoted by…

Q: How are the isotopes of an element different from one another?

A: Isotopes are atoms of the same element which are different in mass. That means They have the same…

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

A:

Q: An isotope of mercury has 80 protons and 120neutrons. What is the mass number of this isotope?

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

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: An element has nine protons and 10 neutrons in the neutral atom. (a) How many electrons are present…

A: Given: Number of protons= 9 Number of neutrons = 10 To find: The number of electrons Atomic number…

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: Use the References to access important values if needed for this question. The atomic weight of…

A: The given chemical element is Cesium (Cs). It is an alkali metal. Given atomic mass is…

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: Explain how the existence of isotopes is related to the fact that atomic masses are not whole…

A: Isotopes: Compounds that are having same atomic number but the different mass number is called…

Q: If a neutral atom of an element has 19 electrons and 14 neutrons, its atomic mass is??

A: Given  Number of electron = 19 Number of neutron = 14  atomic mass = ?

Q: Suppose a new element is discovered and it has two stable isotopes. One isotope has a mass of 71.123…

A:

Q: What is the mass number of an atom of calcium that has 21 neutrons?

A: We know ,  Mass number of an atom = number of proton + number of neutron

Q: 47 How many protons and neutrons are in an atom of Sc ? Number of protons = ? Number of neutrons

A:

Q: An atom has a mass number of 66. Its number of neutrons is the sum of its atomic number and six. How…

A: A= N+Z A=ATOMIC MASS Z=ATOMIC NUMBER  N= NUMBER OF NEUTRONS

Q: Fill in the blanks:a. Isotopes of an element differ in mass because the atomshave a different number…

A: The complete statements have to be provided.

Q: postulate in the atomic theory did the discovery of isotopes contradict

A: The postulates of atomic theory are shown below: Matter is made up of small indivisible particle is…

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: Rutherford's gold foil experiment determined that A) neutrons are in the nucleus. B) electrons have…

A: Rutherford bombarded the alpha particles on the very small sheet of gold. He observed that most of…

Q: The existence of isotopes violates one of the original ideas of Dalton’s atomic theory. Which one?

A:

Q: b. An atom that has a mass number of 39 and contains 19 protons. Potassium C. An atom with mass…

A:

Q: The element sulfur has an atomic number of 16 and an atomic mass of 32. How many neutrons are in the…

A: Atom consist of nucleus at its center and electrons revolve around the nucleus. Nucleus contains…

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: A certain ion X3+ contains 21 electrons and 29 neutrons Identify an ion? what is the mass number…

A: Ions are formed, when an atom gains or loses its electrons, so the ions do not have the equal number…

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

A:

Q: The cation 119Sn+4  has how many electrons, neutrons, and protons

A: tin atom has 50 protons, 69 neutrons and 48 electrons. but it is Sn+4 ion so it  loose four…

Q: What are the atomic number, mass number, and symbol for the carbon isotope with seven neutrons?

A: Given: Carbon isotope with seven neutrons

Q: For the given atom: (a) determine the number of protons, neutrons, and electrons in the neutral…

A: Atoms contains nucleus and electron revolve around the nucleus. Nucleus contains proton and neutron,…

Q: 32. An atom contains 27 neutrons and 23 electrons. What element is this atom?

A:

Q: Part D An atom of chlorine is represented by CI. How many neutrons are in the nucleus of this atom?…

A: Given, An atom of chlorine (Cl): Atomic number = 17 Mass number = 37 For any neutral atom Atomic…

Q: An isotope of chlorine has 20 neutrons. •What is the mass number of the chlorine isotope? •How…

A: Atomic number = Number of protons = number of electrons Mass number = Number of protons + Number of…

Q: Q:) the number of protons in the nucleus of an atom is 8, while the number of neutrons in the…

A: An atom consist of 3 fundamental particles electron, proton and neutron. In a neutral atom number of…