****Atoms Think and Compare: Page 331 Q-3 Consider these atoms: hydrogen H‚ aluminum Al‚ argon‚ Ar. Rank them‚ from smallest to largest‚ in order of (a) size; (b) number of protons in the nucleus; (c) number of electrons. In order of size from smallest to largest: Hydrogen H‚ Argon Ar‚ Aluminum Al. In order of proton from smallest to largest: Hydrogen H‚ Aluminum Al‚ Argon Ar. In order of electron from smallest to largest: Hydrogen H‚ Aluminum Al‚ Argon Ar. Q-4 Consider these atoms:
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Race: Metal Attending Physician: Unknown Gender: Solid Place of Birth: Many different countries Personality: (melting- 600.61 K --- 327.46 C --- 621.43 F) (Boiling- 2022 K --- 1749 C --- 3180 F) Page 2 Pronunciation Rebus: lēd/ Page 4 # of protons: 82 # of neutrons: 125 # of electrons: 82 Atomic number: 82 Page 6 Family Name: Carbon Family Address: 6 Ancient Drive Brother and Sister: Carbon‚ Silicon‚ Germanium‚ Tin. FleroviumProud Parents of Lead Page 1 Name of element: Kobe Lead
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Particle physics and nuclear physics concern themselves with the study of these particles‚ their interactions‚ and matter made up of them which do not aggregate into atoms. These particles include atomic constituents such as electrons‚ protons‚ and neutrons (protons and neutrons are actually composite particles‚ made up of quarks)‚ as well as other particles such as photons and neutrinos which are produced copiously in the sun. However‚ most of the particles that have been discovered and studied
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Recall that isotopes of an element are atoms that have the same number of protons but different numbers of neutrons in their nuclei. Different elements are distinguished by having different numbers of protons. Recall that isotopes of an element are atoms that have the same number of protons but different numbers of neutrons in their nuclei. Different elements are distinguished by having different numbers of protons. The released energy and matter are collectively called nuclear radiation.
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a) A proton has ………positive…….. charge. b) A neutron has ……zero……….. charge. c) An electron has ………negative…….. charge. d) A proton and an electron have ……opposite……….. and ………equal…….. charge. 2. Complete the following sentences using words from the list below. electron(s) ion(s) neutron(s) nucleus (nuclei) proton(s) a) Every atom contains a ……nucleus……….. which is positively charged. e) The nucleus of an atom is composed of ………protons…….. and
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40mg by two. The answer will be three hours. a) Is incorrect because it equal 2 half-lives. 15. The smallest particle of an element that retains the characteristics of the element is a(n) A) atom. B) electron. C) nucleus. D) neutron. E) proton. The correct answer is A)‚ atom. According to page 105 an atom retains the characteristic of that element. b) Describes the negative charge of a particle. Even though it has no mass it is not considered the characteristic of that element c)
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charged particle was the cause of the light produced by the cathode-ray tube. He also discovered that these particles are present in all elements. These cathode-ray particles are now known as electrons. Soon after the discovery of electrons the proton was discovered. This led Thomson to conclude that ther were an equal number of both particles present in the atom. Twelve years later Lord Ernest Rutherford was experimenting with alpha particles. He shot a stream of them at a piece of gold
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Structure Tutorial 1. How many protons‚ neutrons and electrons are there in 3+ ion? 2. Write down the electronic configuration of (a) Si (atomic no. 14) (b) Sc (atomic no. 21) (c) Co (atomic no. 27) 3. Which of the following ions contains an unpaired electron? A calcium ion B copper(II) ion C potassium ion D titanium(IV) ion 4. Some isotopes are unstable and decompose naturally. In one type of decomposition‚ a neutron in the nucleus decomposes to form a proton‚ which is retained in the nucleus
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Week Five Textbook Exercises Geoffrey Anderson PHY/101 December 9‚ 2014 Mr. Craig Spencer Week Five Textbook Exercises Chapter 22: Electrostatics 8) When combing your hair‚ you scuff electrons from your hair onto the comb. Is your hair then positively or negatively charged? How about the comb? -The hair becomes positively charged and the comb becomes negatively charged; since‚ the electrons went from your hair to the comb and the more electrons there is makes an object more negative. 18)
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Cosmic Engine - Research Task 1. Describe how energy can be released from the nuclei of atoms (6) Most nuclei are stable. Consisting of protons and neutrons‚ they are unaffected by chemical reactions and have remained the same since they were formed. However‚ some nuclei are unstable and spontaneously release energy in the form of a Helium nucleus (α Alpha)‚an electron (β Beta) and γ Gamma rays. These nuclei are known as radioactive and it’s not possible to predict when a particular
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