Name the sub – atomic particles of an atom.

Q: Define the term atomic nucleus?

A: Atoms are the building blocks of any matter. The composition of the atomic nucleus gives information…

Q: Explain the structure of an atom, including its main particles

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Q: Where are electrons, protons, and neutrons located withinan atom?

A: The smallest unit of matter is an atom that gives the formation of the chemical element. The meaning…

Q: Why are some atoms radioactive?

A: The radioactive nuclei are unstable and have an excess number of either protons or neutrons in the…

Q: What makes an atom of one element different from an atom of another element?

A: Every element of the periodic table has different physical and chemical properties. These properties…

Q: The number of neutrons in an atom determines the type of element it is

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Q: Given the only naturally occurring isotope of arsenic is AsAs-75, determine its mass from the…

A: Isotopes are the elements which have same atomic number and but different mass numbers.  In other…

Q: Given the only naturally occurring isotope of aluminum is Al-27, determine its mass from the…

A: Isotopes of an element are the ones which have the same atomic number but different mass number.…

Q: Given the only naturally occurring isotope of sodium is Na-23, determine its mass from the periodic…

A: The atomic number of sodium (Na) is 11.

Q: Consider the atom with the chemical symbol Ru. What would be the mass number for an atom of Ru which…

A: Mass number is  the sum of the numbers of protons and neutrons present in the nucleus of an atom..…

Q: An atom has an atomic number of 12 and a mass number of 26. Another isotope of this atom could have

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Q: Use the notation to represent the isotope of silver having a neutron number of 62.

A: Isotopes are the compounds with same atomic number but different mass number. They have same number…

Q: Fill in the blanks: Isotopes are atoms with the same ________ number but different ________ numbers

A: Atoms are small unit of matter combine to form molecule. Atomic number- It is the no. of protons an…

Q: What does the number 84 represent in the name krypton -84?

A: Since we know that  a element having same atomic number but different mass number are known as…

Q: What is meant by neutrons ?

A: The minute particle of a substance is called as an atom. Atom consists of subatomic particles.…

Q: Where are protons and neutrons located in an atom?

A: Where are protons and neutrons located in an atom has to be stated.

Q: All isotopes of an element have a different number of

A: The atom contains three types of subatomic particles, proton, neutron and electron. The protons and…

Q: What is the meaning of half-life of an isotope. Explain with the help of an example

A: What is the meaning of half-life of an isotope. Explain with the help of an example

Q: What is the charge of the nucleus of element 89?

A: The number of protons corresponds to the charge of the nucleus since Neutrons have no net charge, it…

Q: In Rutherford’s gold foil experiment most of the alpha particles went straight through the gold…

A: Conclusion of Rutherford’s gold foil experiment: a) Most of the α-particles pass through the gold…

Q: Atoms that have the same atomic number but different numbers of neutrons are radioactive. O…

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Q: The complete symbol of an atom with atomic number 20, mass number 42 is? Select one: до Са20 а. 42…

A: Atomic number 20 means the element have 20 proton and mass number 42 means total proton ans neutron…

Q: Isotopes of the same element must also have the same: Select one: mass number atomic number number…

A: Isotopes are those substance which have different number of neutrons.

Q: How many electrons would it take to equal the mass of a helium nucleus?

A: The helium atom has 2 protons, 2 neutrons and 2 electrons. The mass of helium nucleus depends only…

Q: Beta particles are best described as _ ejected at high speeds from a radioactive nucleus. positive…

A: Radioactive decay is the emission of radiation from the unstable nucleus is called radioactivity .…

Q: Why is the number of electrons not part of the mass number of an atom?

A: The reason for the number of electrons not part of the mass number of an atom  has to be given.

Q: Alpha particles Multiple Choice have no charge. are the same as electrons. are the same as helium…

A: Alpha particle is positively charged that is released during the alpha decay. In this decay, the…

Q: An atom differs from its ion in which among the following? Mass number Atomic number Neutrons Number…

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Q: From greatest to least, rank them by the number of nucleons in the nucleus. Consider the atoms (a)…

A: In chemistry, the term nucleon can be defined as the subatomic particle which is found in the…

Q: how many protos neutrons and electrons make up a neatural atom?

A: A neutral atom is made up of protons, electrons and neutrons. While electrons carry a negative…

Q: The complete symbol of an atom with atomic number 20, mass number 42 is?

A: Calcium is the element with the atomic number 20.

Q: Of the particles below which one, if lost from the nucleus, changes the atomic mass the greatest? O…

A: The particles are defined as follows --- Proton: The symbolic expression of proton is H11 which has…

Q: Atoms which have the same atomic mass but different atomic numbers are isotopes of one another.

A: Atoms which have same atomic mass but different atomic number are called isobars .

Q: Isotopes have different atomic numbers but same mass numbers. (True / False)

A: Isotopes:  Atoms having the same number of protons (Z) but different number of neutrons (N) are…

Q: What particle can be added or removed to change the charge of an atom? O proton O neutron O electron

A: Any atom has mainly three fundamental particles, Electron , proton, and neutron.   Electrons are…

Q: Which sub-atomic particles are part of the nucleus? Protons Lions Axons Electrons Neutrons

A: An atom contains three subatomic particles: Electron Proton Neutron Electrons are negatively…

Q: What is difference between Atomic mass & Mass nиmber

A: Atomic mass and Mass number

Q: how to rank the isotopes in order of increasing number of neutrons

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Q: Which particle, if lost from the nucleus, changes the atomic mass the greatest?   a. proton   b.…

A: b. alpha particle

Q: Which elementary particle is the heaviest O electrons O protons O They are all identical Neutrons

A: Electrons, protons and neutrons are fundamental particles present in an atom.

Q: The nucleus of an atom consists mainly of:     protons and electrons     neutrons and…

A: The positively charged center in an atom is called nucleus.

Q: Atomic Number Mass Number Atom Symbol Protons Neutrons Fr 87 223 Tungsten 110 238 86 136 57 44

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Q: Distinguish between the atomic numberand the mass number of an atom.

A: in any atom atomic number is defined by number of proton in it . And mass number is defined as sum…

Q: 7. All isotopes of an element have the same numbers of

A: Two or more atoms or elements are called isotopes when they have same number of protons (or have…

Q: Fill in the blanks word .The electron move around the nucleus in an __________

A: The electron move around the nucleus in an __________

Q: Atoms of isotopes of the same element are identical in which of the following aspects? A Mass number…

A: Atoms of isotopes of the same element are identical in atomic no but different mass no . Atomic no…

Q: Write the symbolic notation of an isotope of an element having 8 protons, 8 electrons, and 9…

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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.