In the symbol below, x is, A the mass number B the number of electrons the number of neutrons D the elemental symbol E the atomic number

Q: The atomic weight of silicon is 28.0855. Round this to 4 significant figures. O a. 28.09 b. 28.1 Oc.…

A: Here we have to round the atomic mass of silicon 28.0855 to 4 significant figure.

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: Which statements about subatomic particles are false?a. Protons and electrons have charges of the…

A: Which statements about subatomic particles are false has to be given.

Q: Thomson's experiments with a cathode ray tube demonstrated that protons are positively charges…

A: J J Thomson is one of the famous scientist in discovery of atomic structure and subatomic particles…

Q: The fundamental particle of matter is the A) proton B) electron C) neutron D) atom E) None of the…

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Q: If mass # is 141 and the # of protons 58, what is the atomic symbol and the # of neutrons?

A: Given:The mass number  of atom = 141 The no of proton = 58

Q: The following is a model of a nucleus. The protons are represented by + signs, the neutrons are…

A: An atom is the basic and fundamental unit of matter. An atom consists of electrons and the nucleus…

Q: Uranium-235 is used in nuclear fission. Determine the number of protons and the number of neutrons…

A: Atomic symbol of element gives information about the chemical symbol, atomic number and mass number…

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: In the symbol below, x is A) the mass number the number of electrons c) the number of neutrons the…

A: Mass number of an atom is equal to total number of protons and neutrons  in that  atom.

Q: An ion with six protons, seven neutron and a charge of 2 + has an atomic number of?

A: Given :-  Number of protons = 6  Number of netrons = 7  Charge = +2 (which means loss of 2 electrons…

Q: Complete the following table. (Remember to use correct capitalization for the chemical symbol!)…

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Q: What is an isotope? How are isotopes denoted?

A: Molecular mass is the sum of protons and neutrons of an atom. In the modern periodic table, the…

Q: The amount of carbon-14 in ancient artifacts and fossils is often used to establish their age.…

A: Given, the amount of Carbon-14 in ancient artifacts and fossils is often used to establish their…

Q: Which statements about subatomic particles are true?a. If an atom has an equal number of protons and…

A: (a) This is a true statement because the charge of the proton and the electron are equal in…

Q: A subatomic particle that has about the same mass asthe hydrogen atom and a negative charge is…

A: Subatomic particles are particles that are smaller than atoms. Generally, atoms are compromised of…

Q: Differentiate between an ion and an isotope

A: In order to differentiate between two species it means the difference between the species needs to…

Q: Which of the three subatomic particles was discovered first—the proton, neutron, or electron? Which…

A: All matter is composed of atoms and atoms are made up of three subatomic particles- protons,…

Q: An ion that consists of 16 protons, 32 neutrons, and 18 electrons has:

A: The atom consist of 3 particles-  1- electron 2- proton 3- neutron

Q: Which of these statements is an accurate description of an atom of potassium-40? O It is an isotope…

A: To determine which of the given statement describe the potassium-40  It is an isotope with 40…

Q: Isotope #3 • Element Symbol Ag • Nuclear Symbol Ag 81 35 • Atomic Number 35 • Mass Number 81 •…

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

Q: Zinc has 5 naturally occurring isotopes. How are these isotopes similar to each other? A) They have…

A: Isotopes are the species of same element which differ in terms of atomic masses

Q: Describe the Millikan oil drop experiment in 50 words or more, especially it'a process. What…

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Q: b. x The element's symbol is It has protons. It has neutrons. c. 20X The element's symbol is It has…

A: Given symbols are:- 12854X and 4220X AZX Here, A is atomic mass and Z is atomic number.  128…

Q: The numbers of protons, neutrons, and electrons in the 23 Na isotope, respectively, are: 11 اختر…

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Q: In a test of the Law of Multiple Proportions, two different compounds composed of elements X and Y…

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Q: the isotope with 33 protons and 40 neutrons in its nucleus

A: Given : number of protons is 33. And number of neutrons = 40

Q: Neutral Cl atom has 17 proton and 18 neutron. According to this information, Which one of the…

A: For an atom to be electrically neutral, the number of protons should be equal to the number of…

Q: 2) The spherical atomic nucleus of potassium has a radius of about 4 x 10-13 cm.; 6.02 × 1023 of…

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Q: Complete the following shorthand notations: ? (p, a) §Li 15 31P (a, ? ) 34S 16 242Cm (a, n) ? 96 25…

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Q: Which statement about subatomic particles are true? Electrons are attracted to protons.

A: Electrons are negatively charge and protons are positively change particle, so by this opposite…

Q: Which one of the following statements regarding subatomic particles is true? a. Electrons have a…

A: An atom consists of three sub-atomic particles namely, electrons, protons, and neutrons. Electrons…

Q: If the mass # is 99 and the # of protons is 43, what is the atomic symbol and and # of neutrons?

A: Elemental symbol gives information about atomic symbol of the element, mass number and atomic number…

Q: Which statement about subatomic particles are false? Some atoms don’t have any protons.

A: All atoms have protons.  Every atom has fixed number of number of protons.

Q: An element from the Periodic Table is shown below. The atomic mass is given. A) Give the Name,…

A: Atomic mass: Atomic mass of an element is the total number of protons and neutrons present in the…

Q: What are the atomic models

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Q: The volume of a single lead atom is 2.24×1023 cm³. What is the volume of a lead atom in microliters?…

A: Here the volume of a single lead atom is given in cm3 and we have to convert it into microliters.…

Q: Which statement about a neutron is not correct? A It can be present in different numbers in atoms of…

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

Q: OBo and F have the same number of neutrons. O"c and "N are isotopes of each other because their mass…

A: Atomic number = number of protons =number of electrons (for neutral element) Atomic mass = number of…

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: Currently, the atomic mass unit (amu) is based on being exactly one-twelfth the mass of a carbon-12…

A: The mass of an atom is not only due to the sum of the masses of the neutrons, protons and electrons…

Q: There are three primary subatomic particles that comprise an atom. (i) Name the three subatomic…

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Q: A mass spectrometer measures neon to have two masses: 20 and 22 atomic mass units. These are: A)…

A: Elements having same atomic number but different in mass is called isotopes. Positively or…

Q: The amount of carbon-14 in ancient artifacts and fossils is often used to establish their age.…

A: SOLUTION: Step 1: The atomic number of carbon is 6. The number of protons is equal to its atomic…

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…