Critical Thinking : Dalton believed that atoms were indivisible • Thomson and Rutherford helped to show that this was not true What if atoms were indivisible? How would this affect the types of reactions you have learned about in this chapter?

Q: protons are in the nucleus of the following elements

A: (a) Carbon, C Carbon atom has 6 neutrons and 6 protons. It has an atomic mass of 12.

Q: did john dalton give us the "raisin bun" model of the atom where negative and positive charges are…

A:

Q: Oxygen is a _______ and therefore _______ when it forms an ion   A. nonmetal;       loses…

A: Oxygen is a nonmetal element.

Q: Explain your answer. 1. Who is sir john joseph dalton? 2. What elements were formed during and after…

A: Supernova: It is breaking or explosion of star which include a lot of energy and light during the…

Q: When Rutherford’s coworkers bombarded gold foil with α particles, they obtained results that…

A: The Rutherford’s experiment established about the alpha particles bombarded with gold foil.…

Q: what was johns dalton initial research focus was and what he eventually contributed to early atomic…

A: Johns dalton first introduced atomic theory in chemistry.He gave three laws.These are i-Law of…

Q: Thomson was able to determine the mass/charge ratio of the electron but not its mass. How did…

A: Millikan oil drop experiment proved that electric charge is quantized. He believed that there was a…

Q: Can you figure out why most of the α-particles in Rutherford's experiment went through gold foil…

A: Rutherford's experiment is to determine the structure of an atom where Rutherford used alpha…

Q: Use Rutherford's gold-foil experiment to answer each of the following: How did the results differ…

A: Rutherford experiment He made to strike fast moving alpha particles with the gold foil. He expected…

Q: Which of Dalton’s postulates about atoms are inconsistent with later observations? Do these…

A: In 1808 John Dalton has provided the first atomic theory. He has stated that all matter is made up…

Q: How many elements are presently known? About how many occur naturally?

A: Periodic table contains 119 elements but the last elements 119 know as Ununennium or eka-francium is…

Q: Briefly explain (i) Thompson Experiment OR (ii) Rutherford Experiment emphasizing the discovery(ies)…

A: E. Rutherford discovered protons which are positively charged sub-atomic particles. J. J. Thompson…

Q: Compare the plum pudding model of Thomson to the nuclear model of Rutherford. Describe the…

A: Plum pudding model of Thomson : In 1898, J. J. Thomson proposed the first of many atomic models to…

Q: The radius of a tungsten atom is 137 pm. How many tungsten atoms would have to be laid side by side…

A: According to the unit conversion, 1 mm is equal to 1×109 pm. The diameter of tungsten is 274 pm.…

Q: of protons, number of neutrons, atomic number, and mass number for the isotope 23 Na 00 What is the…

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Q: Calculate the number of atoms in sample. 14.955 g Cr

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: Mass Isotope from the list, and answer the following questions for each term: What familiarity and…

A: The two given terms are  Mass Isotope Dear student since it is a multiple subparts questions,…

Q: Which statements are inconsistent with Rutherford’s nucleartheory as it was originally stated?…

A: Given statements, a. Since electrons are smaller than protons, and since a hydrogen atom contains…

Q: When Rutherford’s coworkers bombarded gold foil with a particles, they obtained results that…

A: Thomson model of atom is known as plum-pudding model. Based on Thomson model of atom, the atoms are…

Q: mass of magnesium ribbon before experiment is 0.33g mass afer is 0.49g    Determine the mass of…

A: 0.1945 g of O2 combines with Mg to form 0.49 g of MgO.

Q: "Lithium has two isotopes. Lithium-6 has an actual mass of 6.015 g/mol and lithium-7 has a mass of…

A: Given: There are two naturally occurring isotopes of lithium. Molar mass of isotope 1 i.e. lithium-6…

Q: Explain how Rutherford expanded on Becquerel and Curie's research. Include in your answer how this…

A: There were many models to propose the structure and composition of an atom by various scientists.…

Q: Summarize indicating Dalton major contribution to the atomic theory.

A: Dalton’s atomic theory was a scientific theory on the nature of matter put forward by the English…

Q: What is Henri Becquerel contribution to the atomic theory? Explain in detail.

A: Answer - discovery of radioactivity in uranium by French physicist Henri Becquerel in 1896 forced…

Q: Calculate the atomic mass of naturally occurring chlorine if 77.62% of chlorine atoms are…

A: To calculate atomic mass of chlorine:

Q: How many electrons are in gold atom? Does protons also take part in chemical reaction?

A: Gold is a chemical element with the symbol Au and atomic number 79, making it one of the higher…

Q: protons and neutrons since they both have a mass of 1 amu. Complete the table to show each…

A:

Q: Which scientist suggested that atoms combine in different whole-number ratios to form compounds but…

A: Dalton explain first of all the Atomic theory of atom. In 1808 he put forward a theory which is…

Q: How would you determine the accuracy of an atomic mass?

A: The atomic mass is a weighted average of all of the isotopes of that element, in which the mass of…

Q: The radius of a hydrogen atom is 37 pm (1pm 10-12m). How many hydrogen atoms lined up side to side…

A: Given,Radius of hydrogen atom = 37 pmDiameter of hydrogen atom = 2 × radius = 2 × 37 pm = 74 pm…

Q: explain how to get the atomic symbol

A: Atomic symbol is way of representation of a particular element that makes easy handling of elements…

Q: hydrogen helum H Не 1.0079 hium 4.0026 noon berylikun boron carbon ritrogen oygen fluorine 10 Li Be…

A: The correct option is:

Q: Metals (in its ionic state) if heated will radiate light, this is because of the reaction of:  a.…

A: Metals are good conductors of heat and electricity. This is because of transfer of electrons from…

Q: a certain compound is made up of 2 chlorine atoms, one carbon atom, and one oxygen atom. What is the…

A: A chemical formula is defined as the composition of elements present in the compound in a fixed…

Q: Describe what you think happens on an atomic scale when you push a pencil across a piece of paper…

A:

Q: What is the electrical charge of water?

A: The compound given is water.

Q: Using  Periodic Table give four pieces of information which we have about cadmium? (What do we know…

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Q: l charge of oxygen in

A: Formal charge is real or imaginary charge present on the atom in the compound.

Q: Describe our current understanding of an atom?

A: The solution is given  below-

Q: Hydrogen and oxygen react to form water, together they are a  .... - molecule - compound -…

A: Hydrogen and oxygen are atoms that combine to form water

Q: 41) A teenage child in Wisconsin throws a chunk of sodium metal into a lake consisting of freshwater…

A: Given: mass of sodium = atomic number of fluorine = 9 kg = 9000 g density of water = 1.01 g/mL…

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: 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 is the formula for carbon tetrachloride ?

A:

Q: List two elements found on the periodic table which are liquid at room temperature. (Please note…

A: The two liquid elements on the periodic table at room temperature are Mercury (Hg) and Bromine (Br).…

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

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

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.