How many protons neutrons and electrons are present in a single atom of osmium - 190?

Q: Which describes an atom of plutonium?A. It can be divided into smaller particles that retainall the…

A: A. It can be divided into smaller particles that retainall the properties of plutonium.B. It cannot…

Q: Calculate the mass in grams of one Pd atom.

A: We know that,  1 mole = 6.023 X 10^23  atoms  Number of moles = No of atoms / (6.023 X 10^23)  Mass…

Q: What is 16 protons+ 16 neutrons 18 electrons

A:

Q: How many protons, neutrons, and electrons are in an atom of (a) 138Ba, (b) phosphorus-31?

A:

Q: A nucleus of mass number 35 contains 19 neutrons. write the formula for this monoatomic element.…

A: A nuclide is represented by the formula A is the total number of protons and neutrons. Z is the…

Q: How many protons, neutrons and electrons are there in a neutral atom of the isotope of chlorine…

A: Calculation of protons, neutrons and electrons present in neutral atom: The given compound is…

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: the oxygen isotope with 7 neutrons

A:

Q: if a penny is made of 2.56 grams of copper, how many atoms of copper are in the penny?

A: Answer:- This question is answered by using the simple concept of calculation of number of atoms…

Q: Americium-241 is a radioactive isotope that is used inhigh-precision gas and smoke detectors. How…

A: An atom is primarily made up of subatomic particles like electron, proton and neutron. Electrons are…

Q: Which statement about subatomic particles are true? Protons have twice the mass of neutrons

A: Subatomic atomic particles: A standard atom consists of three subatomic particles:  Electron Proton…

Q: How many protons and neutrons are in an atom of Pm-149? Number of protons Number of neutrons =|

A: given atom, Pm-149 its symbol is Pm61149

Q: One atom of Se-77 is 6.410 times as heavy as an atom of C-12. What is the atomic mass of Se-77?

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Q: How many protons, neutrons and electrons are present in an atom of 40Ca and 119Sn ?

A: The atoms considered are 40Ca and 119Sn.

Q: Which elements make up about 99% of the mass of living things?

A: Elements are very important for the maintenance of biological life. For example sodium and potassium…

Q: number of protons and neutrons in each isotope

A:

Q: Iodine has a mass number of 127 and 53 protons, how many neutrons does it have?

A:

Q: How many protons, neutrons, and electrons are present in a single atom of selenium−80? Be sure to…

A: The number of protons and electrons in an atom is same. Nucleus has proton and neutron in it while…

Q: If a penny is made of 2.56 grams of Copper, How many atoms of copper are in the penny?

A:

Q: How many protons, neutrons, and electrons are in an atom of strontium-90?

A: The atomic number of strontium is 38. The atomic number present in a neutral atom is always equal to…

Q: An element with 11 neutrons, 11 protons, and 11 electrons would have a mass number of _____?

A: The total number of neutrons and protons present in a nucleus is known as mass number.

Q: Americium-241 is a radioactive isotope that is used in high-precision gas and smoke detectors. How…

A:

Q: The total number of subatomic particles (protons, electrons, and neutrons) in an atom of 75Ge is…

A: Given:An atom 75Ge __ 75 is the mass number

Q: An atom containing 19 protons, 20 neutrons, and 19 electrons has a mass number of?

A: Given, Number of protons = 19 Number of electrons = 19 Number of neutrons = 20

Q: 4. HYDROGEN Atomic Number: Atomic Mass: # of Protons: # of Electrons: # of Neutrons:

A: Given element,    Hydrogen (H)

Q: give the number of protons, electrons, and neutrons for Strontium-88

A: An atom is mainly composed of three sub-particles; electrons, protons and neutrons. These particles…

Q: How many protons, electrons, and neutrons are present in an atom of 52/24Cr?

A: An atom is composed of three main sub-atomic particles; electrons, neutrons and protons. The atomic…

Q: How many protons, neutrons, and electrons are present in a singleatom of:a. phosphorus-30 b.…

A: (a) Since the atomic number of phosphorus = 15  Hence number of electrons = Atomic number = 15   And…

Q: An unknown element X has the following isotopes: ²⁵X (80.5% abundant) and ²⁷X (19.5% abundant). What…

A: Average atomic mass can be determined by the equation given below:

Q: a silver quarter has a mass oif 6.19 grams.It is 13.6 percent copper the remainder is silver.how…

A:

Q: what is the mass of 7.15 x 10^22 aluminum atoms?

A: Given, Number of Aluminium atoms = 7.15×1022

Q: If one charge is + 0.44 nC, what is the other charge?

A: One charge = + 0.44 nC  Other charge = ?

Q: An element has three stable isotopes with masses of 27.977 amu, 28.976 amu, and 29.973 amu. The…

A: The average atomic mass of an element is calculated by considering the atomic mass of each isotope…

Q: How many protons, neutrons, and electrons are contained in an atom of argon, which has an atomic…

A: The atomic number is determined by the number of protons. The number of neutrons is obtained by the…

Q: Element "X" has a mass# of 53. How many neutrons does it have if its atomic# is 27

A: According to the answering guidelines, I'm posting the solution for the first question. Kindly post…

Q: What is the mass number for an atom of osmium containing 76 protons and 112 neutrons?

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

Q: How many protons and neutrons are in the nucleus of Kr-80?

A:

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: 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: For 10, number of protons = number 8 of neutrons = and number of electrons 18 For 80, number of…

A: An element ( X ) is represented as   AzX.  A =  Mass number  Z = Atomic number    Z  = no.of protons…

Q: Atomic Number Atomic Mass = : # of Protons : # of Protons + # of neutrons :: #of electrons : #of…

A:

Q: What is the mass (in grams) of one Ni-58

A: Given is number of atom = 1 Mole represent the quantity of fundamental particle.

Q: Element Protons Neutrons Mass (atom) Carbon #protons? 12 Beryllium 4 #neutrons? element? 10…

A: For an element, the atomic number, Z, of an element is equal to the number of protons. The atomic…

Q: How many protons neutrons and electrons are present in a single atom of bromine-79?

A: Since the atomic number of bromine = 35  hence number of electrons = Atomic number = 35

Q: what element has 17 protons and 18 neutrons

A: Proton of an element is equal to the  atomic number of element. sum of proton and neutron is equal…

Q: How many electrons and neutrons (n) are in a neutral magnesium-26 atom?

A: Atomic number of a neutral atom is equal to the number of electrons or number of protons present in…

Q: The number of protons, neutrons, and electrons in a nucleus of Br-80 is

A: The nucleus given is Bromine, Br-80.

Q: When the Number of Neutrons Varies?

A: Atomic number (Z)- the number of protons or electrons present in an atom of element called as atomic…

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.