The neutral hydrogen atom consists of   a. one proton and one neutron.   b. one proton, one neutron and one electron.   c. one proton and one electron.   d. one proton.   e. an isotope and an ion.

Q: The element stramonium (Sa, average atomic mass 628.23 u) reacts with the element kingsine (Ks,…

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Q: Balance each reaction and write its reaction quotient, Qc:

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

Q: The Periodic Table of Elements is arranged based on the atomic number. Hence, it is arranged based…

A: General chemistryThe Periodic Table of Elements is arranged based on the atomic number. Hence, it is…

Q: 17. Sergio's teacher gave him a sample of a substance to identify. His teacher told him it is either…

A: Metal are hard , shiny, magnetic , and a good conductor of electricity .

Q: Explain about the Indivisible: The Atomic Theory

A: The “indivisible: the atomic theory” was proposed and put forward by English chemist Dalton.…

Q: A certain mass of carbon reacts with 455.9 g of oxygen to form carbon dioxide. ________ grams of…

A: According to Law of multiple proportions:     C  + O2 → CO2    ----Eqn 1     C  + 1/2O2 → CO…

Q: In the following drawing, the green spheres represent atoms of a certain element. The purple spheres…

A: In the given chemical change, the starting materials consist of four green spheres and two purple…

Q: Is the statement inconsistent with Dalton’s atomic theory as it was originally stated? Why? Two…

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Q: Define atomic number, mass number, isotope, atomicmass, and mole.

A: Anything that occupy space and has mass is called matter which  is made up of atoms. Atoms are…

Q: 34. Barium Carbonate (s) Barium Oxide (s) + Carbon Dioxide lg) a&b: C: d:

A: Answer:- this question is answered by using the simple concept of writing the balanced chemical…

Q: Compare and contrast the expected and actual observation of the Gold Foil Experiment. For each…

A: Thomson model describes about the atom in such a way that sphere has a positively charged around…

Q: What is atomicity

A: Atomicity is a term which is used to represent the number of atoms present in any molecule or…

Q: hich element es each

A: Electronic configuration of element is the complete adress of electron that is electron is present…

Q: The most abundant isotope of Hydrogen has a mass of 1 amu.  Therefore, the average atomic mass on…

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Q: True or False -Atomic theory doesn't need to be taken seriously because it's just a theory ....

A: Given statement is, Atomic theory doesn't need to be taken seriously because it's just a theory

Q: In a neutral atom the number of protons equals

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Q: The density of copper is 8.96 g/cm3. How many copper atoms are in a sphere with a volume of 0.475…

A: Mass = Volume x density Number of moles = Mass in gram/Molar mass Number of atoms = Number of moles…

Q: Let a triangle represent atoms of element A and a circle represent atoms of element B.a. Draw an…

A: A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture.…

Q: List and explain Dalton's atomic theory (postulates). Explain which postulates were rejected and…

A: John Dalton gave the first postulates about the structure of an atom......

Q: ow many protons does aluminum (Al) have? How many neutrons? How many electrons?

A: Aluminium  atomic number = 13  Electronic  configuration  of aluminium = 1s22s22p63s23p1

Q: use models to study atoms?

A: Atom is defined as the basic building block of matter. All matters in any form either solid ,liquid…

Q: A tiny sample of gold contains  1.5 x 10^16 atoms. The mass of the gold sample is ______  μg.

A: Given the number of gold atoms, the tiny sample contains = 1.5*1016 atoms We have to find the mass…

Q: A cube of gold that is 1.00 cm on a side has a mass of 19.3 g.A single gold atom has a mass of 197.0…

A: Atoms are packed orderly in a defined crystal lattice that is assumed to have any shape such as…

Q: In any neutral Adam there are equal numbers of? A. Neutrons and electrons B. Protons and neutrons…

A: Neutral atom are those having not any charge. They are wholely neutral

Q: 4. Who discovered the neutron in 1932? A. Democritus C. Ernest Rutherford B. James Chadwick D.…

A: Mass number Mass number gives the number of protons and neutrons in an atom.

Q: Naturally occurring elements are originally formed: O A. Inside the core of stars, or when stars…

A: Naturally occurring elements as the name suggest, it is formed naturally not by any man made actions

Q: The Periodic Table: 1. Where can you find the atomic number on an element on the periodic table?

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Q: What is the volume of a molybdenum atom in microliters?

A: 1 cm3 = 1 mL  1 mL = 0.001 L  1 mL = 1000 microliters

Q: Explain the four points of the particle model of matter.

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Q: What did Mendeleyev do with his Table of the Elements that surprised people?

A: In the given question  Mendeleev arranged the elements that elements with the same physical and…

Q: Rutherford’s gold foil experiment gave scientists clues to the composition of the atom. One thing…

A: In Rutherford's Gold foil experiment,  proved that atom composed with two things - - 1) positively…

Q: d. Sulfur trioxide, SO, e. dinitrogen tetroxide, N,O, f. Chlorate, CIO," (one chlorine and three…

A: The species given are SO3, N2O4 and ClO3-.

Q: What did Rutherford conclude about the atom that would explain the unexpected result explain

A: Rutherford performed the α-particle scattering experiment and observed that most of the α- particles…

Q: The 3rd postulate of Dalton’s Atomic Theory is consistent with a Law developed by a French scientist…

A: 1st atomic theory is proposed by John Dalton, That talks about atoms and it's properties, named as…

Q: Explain Rutherford’s Gold Foil experiment and what it did for the development of the atomic model.

A: Rutherford’s Gold Foil experiment makes out to find out the how an atom is formed and which nuclear…

Q: What are the charge and mass of?:  a)  a singly ionized sodium atom, Na2+ (??????: 2311??, ????=…

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Q: What are the atomic models

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Q: Describe Rutherford alpha scattering experiment

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Q: SECTION 2: WHY DOES A MOLE HAVE A DIFFERENT MASS? PART A: WATCH THE VIDEO to fill in the blanks and…

A: To fill in the blanks on the information about atom

Q: In your own words, explain Why do scientists use models to study atoms? In your own words, explain…

A: Atoms are the smallest part to which elements are divided. Or we can say defining structure of…

Q: Imagine a new element (symbol X) has been found on Mars. Four isotopes of the element have been…

A: Average atomic mass of element X can be calculated by using the equation: Average atomic mass of X =…

Q: Mercury has an atomic number of 80 and an atomic mass of 200. Mercury has number of protons, number…

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Q: In Rutherford’s gold foil experiment, which particle(s) were used? Group of answer choices α-rays…

A: Alpha rays (radiation) is the emission of an alpha particle (helium nuclei). Beta rays (radiation)…

Q: For 223FT, number of protons = number of neutrons = + and number of electrons = For 227 Fr, number…

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

Q: Nitrogen (N), has two naturally occurring isotopes: N-14 that has a percent abundance of 99.63 % and…

A: The atomic mass of Nitrogen = ( mass of N-14 X percent of N-14 + mass of N-15 X percent of N-15) /…

Q: n elemental metal contains how many types of atoms?

A: Elements are the substance that is composed of a single type of atoms.

Q: How are isotopes of an element identical to one another? How are they different from one another

A: Isotopes of an element is defined as atoms of same element having different mass Number but same…

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.