1. A model of an atom is shown below. Carbon (C) Sodium (Na) Nucleus Boron (B) Neon (Ne) CLEAR ALL An atom of which element is represented by this model?

Q: Which subatomic particle was discovered by researchers working with cathode-ray tubes?

A: Cathode ray tube experiment Cathode ray tubes are sealed glass tubes are sealed glass tubes that are…

Q: State the main points of Dalton’s atomic theory using your own words. Which parts of Dalton’s theory…

A: Introduction: John Dalton, in the year 1808, put forward his atomic theory on the nature of matter.…

Q: Give some examples of metals and nonmetals?

A: Some examples of metals and nonmetals have to be given below.

Q: How are the concepts of an atom and an element related? What causes elements to differ?

A: A particular atom will have the same number of protons and electrons and most atoms have at least as…

Q: what is an atom? Also, determine the parts of an atom

A: what is an atom? Also, determine the parts of an atom?

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

A:

Q: In the symbol below, x is, A the mass number B the number of electrons the number of neutrons D the…

A: Mass number is the total of number number of protons and neutrons in an atom. Atomic number…

Q: Q2. Which statement best summarizes the nuclear model of the atom that emerged from Rutherford’s…

A: In order to find out the arrangement of e- and protons in atoms, Rutherford conducted a series of…

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: 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: Which subatomic particle(s) are found in the nucleus of the atom? Enter the subatomic particle or…

A: To find : Which subatomic particles are found in the nucleus of the atom.

Q: the subatomic particle with no charge is the? a. proton b. neutron c. atom d. electron

A: We have to predict no charge species.

Q: Describe the early Greeks' idea of the atom?

A:

Q: define element and atom?

A: An element is a pure substance made up of only one kind of atom. An atom is the basic unit of all…

Q: Characterize elements and their isotopes.

A: Due to the discovery of various elements, it was very difficult to organize and study the…

Q: pretend that an atom has 25 protons, 20 electrons, and 30 neutrons. What is that charge?

A:

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: 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 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: Refer to the periodic table, and find the following information:a. the symbol of the noble gas in…

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

Q: fill the following blanks a. At the extreme left side of the periodic table the elements are…

A: Modern periodic table was designed by Henry Moseley based on the modern periodic law which states…

Q: which of three subatomic particle was discovered first - the proton, neutron or electron?

A: The subatomic particle out of the three that was discovered first is to be identified- the proton,…

Q: What subatomic particle is the primary concern of chemistry?

A: Bohr model gives information about three basic subatomic particles.

Q: the number of protons in an atom is equal to the atomic number true or false?

A: Given statement :- The number of protons in an atom is equal to the atomic number  To determine :-…

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

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Q: Potassium has an atomic number of 19 and an atomic mass of 39 (ignore the possibility of isotopes…

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Q: is chlorine gas an element ?

A: The simplest chemical substance which made up of atoms with the same number of protons and it cannot…

Q: Diagram an atom of nitrogen which consists of 7 protons, 7 neutrons and 7 electrons. Be sure to…

A: Answer -

Q: Antinomy, Sb, has 2 isotopes and an atomic weight of 121.75 amu. The isotope anitimony-121 has a…

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Q: How are protons and neutrons similar? How are they different?

A: Similarities: Protons and neutrons have almost the same mass and are both located in the nucleus of…

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: for elements (Br, Ca, Fe, Na, S, Si, and Xe) which of the following term(s) apply? a. metal b.…

A: To classify the elements we have see in which block of the periodic table  the given element is…

Q: What defines an element?

A: An atom can be considered as the smallest unit of any matter. An atom is composed of certain…

Q: Describe our current understanding of an atom?

A: The solution is given  below-

Q: 5. A model of a beryllium atom is shown below. Neutral particles and positively charged particles…

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Q: Does uncertainity principle is applicable to all subatomic particles?

A: For the subatomic particles, their exact position and the exact velocity cannot be determined at the…

Q: Which subatomic particles have a negative charge?

A: A typical atom consists of three subatomic particles: protons, neutrons, and electrons. Protons and…

Q: Distinguish between Democritus’s ideas and Dalton’s atomic theory.

A: Democritus's ideas and Dalton's atomic theory both describes the nature of matter in terms of atoms.…

Q: An American penny is 97.5% zinc and 2.5% copper and hasa mass of 2.5 g. Use the approximation that a…

A: Given, An American penny is 97.5% zinc and 2.5% copper and has a mass of 2.5 g. Use the…

Q: whats difference between an atom and an element?

A: The atom and an element are to be differentiated.

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: 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: Using the golf ball analogy, where the golf ball represents the nucleus of a hydrogen atom, what…

A: The provided picture contains multiple questions. Hence as per the guidelines, the first question is…

Q: Which statements are consistent with Dalton’s atomic theoryas it was originally stated? Explain your…

A: Dalton was a chemist who gave a theory to explain the nature of atoms as Dalton's atomic theory.…

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: what are isotopes

A: The different variants of a particular element, that are differed by the number of neutrons. In…

Q: The volume of a single tantalum atom is 1.20×10-23 cm³. What is the volume of a tantalum atom in…

A:

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…