A nitrogen atom has 7 protons, and the most common isotope of nitrogen has 7 neutrons. A radioactive isotope of nitrogen has 9 neutrons. What are the atomic numbers and mass numbers of the stable and radioactive forms of nitrogen?

Q: An imaginary element has two naturally occurring isotopes and has an average atomic mass of 150.2…

A: The relative abundance of each isotope is calculated using equation (1) in which mavg is the average…

Q: 1. Changing the number of positively charged protons in the nucleus of an element would form T a) a…

A: 1) an atom consist of positive charge proton , negative charge  electron and neutral neutron  Atomic…

Q: What is the atomic weight of element X of an atom X-23 which have an isotopic mass of 23.02amu and…

A: The Atomic Weight of element X ofX23⇒23.02 amu isotopic mass ,X25⇒25.14 amu isotopic mass .

Q: A sample of the element Phosphorus is shown to have a mass of 33 and a charge of -3. How many…

A: The atom of an element is made up of sub-atomic particles. The major sub-atomic particles of an atom…

Q: Is the statement inconsistent with Rutherford’s nuclear theory as it was originally stated? Why? The…

A: In his nuclear theory, Rutherford states that the nucleus of an atom contains most of the mass of…

Q: An atom in which the number of protons is no longer equal to the number of electrons is ___.   A.…

A:

Q: 9. An atom of the isotope chlorine-37 consists of how many protons, neutrons, and electrons? (p =…

A: Formula used: No. Of neutron= mass no. - no. Of proton.

Q: Write isotopic symbols in the form zXA for each isotope. the argon isotope with 22 neutrons

A: Different forms of same element which have different mass number (A) and same atomic number (Z).…

Q: 34. The nucleus of an atom contains 56 neutrons. The atom contains 43 electrons. What element is it…

A:

Q: What are the atomic number (Z), mass number (A), and symbol of the chlorine isotope with 18…

A: Isotopes are elements with same number of protons but having different number of neutrons. Isotopes…

Q: One isotope of carbon has the atomic number 6, and the mass number 14. An atom of this isotope…

A: Isotopes are the atoms of same element with different number of neutrons. Atomic number represents…

Q: Calculate the average atomic mass of copper. The percentages denote the relative abundances. Isotope…

A: Average atomic mass (in amu),           = Σ (atomic mass × abundance) of isotopes

Q: Cobalt–60 and iodine–131 are radioactive isotopes commonly used in nuclear medicine. How many…

A: The number of protons in the nucleus of the atom is equal to the atomic number.The number of…

Q: Write isotopic symbols in the form zXA for each isotope. the copper isotope with 36 neutrons

A: Isotopes of elements are the one that have same atomic number but different mass number.  Sum of…

Q: 60% of the isotopes of bromine have an atomic mass of 79 amu while 40% of the isotopes of bromine…

A: Given Percentage abundance of bromine isotope

Q: Explain the role of atomic number in determining the identity of an atom.

A: Atomic number(Z) is may be defined as the number of protons present in a neutral(uncharged) atom,…

Q: Fill in the blanks 1. An orbital is the region in an atom where it's more likely (probably) to find…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: How many 3? electrons are found in each of the following elements? nickel, ?= 28 vanadium, ? = 23…

A:

Q: 11) To calculate the number of neutrons in an atom, you would subtract A) mass number from atomic…

A: Sence, you have asked multiple questions so I will solved in details first question for you with…

Q: An atom of gadolinium has an atomic number of 64 anda mass number of 153. How many electrons,…

A: Gadolinium element belongs to the F-block element with the atomic number 64 and atomic mass 153 g.…

Q: Write isotopic symbols in the form zXA for each isotope. The copper isotope with 34 neutrons

A: It’s explained below:

Q: The element lithium has two naturally occurring isotopes.One of these has a mass of 6.0151 amu and a…

A: Given that: mass of first isotope = 6.0151 amu abundance = 7.49 % mass of second isotope = 7.0160…

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: Choose one element on the periodic table and get all its isotopes, proton-rich isotopes, and…

A: Since the isotopes of an element have the same atomic number and have a different atomic mass.

Q: Many of the CHEMICAL PROPERTIES of the elements vary periodically with the atomic numbers. The best…

A: Periodic table follows the periodic law,  thats chemical and physical properties of the elements are…

Q: Calculate the average atomic mass of copper. The percentages denote the relative abundances. Isotope…

A: Calculation of average atomic mass of cu:

Q: What is the atomic number for an element whose mass number is 138, which contains 80 neutrons per…

A: Given : Mass number = 138  And number of neutrons in 1 atom = 80

Q: An element 'A' contains 15 protons, 15 electrons and 16 neutrons. it is |. It becomes when it has 15…

A: The atomic number of an atom is the number of protons present in the atom. For a neutral atom, the…

Q: That is to say the atom 108 47Ag . Determine the number of protons, neutrons and electrons in this…

A: The general representation of the atomic symbol. XZAWhere, X = atomic symbolA = mass no.Z = atomic…

Q: Write the standard isotopic notation for the following atoms: a)80p, 80e,120n b)7p,7e,8n…

A: The standard isotopic notation of an isotope is written as follows:

Q: Question attached

A:

Q: Choose the complete chemical symbol for the isotope of chromium with the following individual…

A: Complete chemical symbol for the isotope of chromium with the following individual characteristics.6…

Q: Two isotopes of boron are found in nature: 10B has a mass of 10.01 amu, and 11Bhas a mass of 11.01…

A: Given: The atomic mass of 10B, an isotope of boron, is 10.01 amu. The atomic mass of 11B is 11.01…

Q: Platinum (Pt) has an isotope with a mass number of 195. This isotope has____________  protons…

A:

Q: An element 'A' contains 4 protons, 4 electrons and 5 neutrons. it is + . It becomes when it has 4…

A:

Q: How are elements H, He, Li, Be, and B formed with the concept of atomic number

A: The elements H, He, Li, Be, and B formed with the concept of atomic number have to be given below.

Q: 6. The element magnesium has three naturally isotopes. Given the following information calculate the…

A: Certain metal in period table have more than 1 isotope with different relative abundance  Here We…

Q: ... How many protons, electrons and neutrons are in each of the following? a) 37Cl = protons 17,…

A: #(I): In a neutral atom, Number of protons(p) = Number of electrons(e) = Atomic number(Z) Number of…

Q: Which of the following factors determines the size of an atom?(a) the volume of the nucleus (b) the…

A: Atomic size can be given as the separation between the nucleus and the valence electrons of an atom.…

Q: a sample of the element boron with have some atoms with six neutrons and some atoms with 5 neutrons;…

A: Given is a sample of biton atoms, of which some contain 5 neutrons and some contain 6 neutron. We…

Q: An isotope has a mass number of 13 and an atomic number of 6. How many neutrons does this isotope…

A: Number of neutrons =  Mass number - Atomic Number

Q: The element lithium has an atomic weight of 6.941 amu. There are only two isotopes of lithium, Li…

A:

Q: Describe the basics of atomic structure, including ions and isotopes; and then how each of these…

A: Atomic structure refers to the structure of an atom comprising a nucleus (centre) in which the…

Q: Beryllium has an atomic number of 4. How many neutrons does the isotope beryllium-9 have? O 4 O 13 9…

A: * Atomic number = Number of protons  For the neutral atom , Number of electrons = number of protons…

Q: Write isotopic symbols in the form zXA for each isotope. the potassium isotope with 21 neutrons

A: The explanation and answer is as given below:

Q: An element 'A' contains 4 protons, 4 electrons and 5 neutrons. it is It becomes • when it has 4…

A: The question is based on the concept of atomic structure. by looking at proton,  neutron &…

Q: cobalt atomic number 27 how many protons electrons and neutrons in isotope CO- 63

A:

Q: An element 'A' contains 4 protons, 4 electrons and 5 neutrons. it is •. It becomes • when it has 4…

A:

Q: An isotope of Uranium has an atomic mass of 240. How many neutrons does this isotope have

A: mass number is the sum of number of protons and number of neutrons.

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.