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8.1 Electron arrangement . A том құрылысы

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Lesson objectives: Сабақ мақсаты • 8.1.3.1 бірінші 20 элементтің электрондар санын анықтау • 8.1.3.2 электрондардың қабаттарда орналасуының схемасын салу • 8.1.3.3 электрондар атомда ядродан арақашықтықтары артып келе жатқан орбитальдарда біртіндеп орналасатындығын түсіну

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Terminology English Қазақша Particle Бөлшек Atom Атом Proton Протон Neutron Нейтрон Electron Электрон Shell Қабат Orbital Орбиталь Charge Ядро заряды Positive Позитив (+) Negative Неготив (-) Neutral Нейтрал Atomic weight Атом салмағы Substance зат Nucleus ядро Located Орналасуы Move around Айналу Valence electron Валенттілік электрон Isotope Изотоп

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electron

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Is located in the center of atom.

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electron Move around nucleus with high speed

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+- Shell Electron ProtonNeutronNucleus Atomic structure

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Is located in the center of atom.

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Neutron are neutral particles and shown as ``n``

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Protons are positive particles found in the nucleus of atom and shown as ``p``

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Electron Move around nucleus with high speed

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Shell depends on the periodic number

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Here are below a maximum number of electrons on “K”, “L”, “M”, “N” shell. First shell (K) for n=1 2xn2= 2x12=2e Second shell (L) for n=2 2xn2= 2x22=8e Third shell (M) for n=3 2xn2= 2x32=18e Fourth shell (N) for n=4 2xn2= 2x42=32e

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Atomic Number (Protons) Symbol Name State at room conditions Electron in the shells 1 H Hydrogen gas 1. 2 He Helium gas 2. 3 Li Lithium solid 2,1 4 Be Beryllium solid 2,2 5 B Boron solid 2,3 6 C Carbon solid 2,4 7 N Nitrogen gas 2,5 8 O Oxygen gas 2,6 9 F Fluorine gas 2,7 10 Ne Neon gas 2,8

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General description of element

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Put the words in the gaps Name Simbol Atomic weight (Ar) Proton (P) Neutron (N) Electron (E) Aluminium 13 Ba 56 40 Nitrogen 7 P 15 Silver

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Nucleus shell, atom neutral, negative electrons orbital, positive protons, neutron Scientists say that the smallest particle of substances are called _____ . Atom means indivisible derived from atomos in Greek language because of its very small size. Atom has two parts, nucleus and _______ . _________ is located in the center of atom and electrons move aroud nucleus with high speed. Scientists believed that atoms were indivisible up to 20 th century. Today we know that atoms have subatomic particles, called _______ , ________ and electrons. Protons are _______ particles found in the nucleus of an atom, and shown as « p » . Each element has certain number of protons which differ from other elements. Neutrons are _________ particles found in the nucleus of an atom, and shown as « n » . Electrons are _______ particles that move around the nucleus of an atom, and shown as “e”. Neutral atoms have the equal number of protons and electrons. Electrons are rotating in certain places called _________ energy level or shell. The electrons located in the outermost shell of atoms are called _____________ . __________ have the same number of protons but different number of neutrons. They have similar chemical properties but different physical properties.

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Nucleus shell, atom neutral, negative electrons orbital, positive protons, neutron Scientists say that the smallest particle of substances are called atom . Atom means indivisible derived from atomos in Greek language because of its very small size. Atom has two parts, nucleus and electron . Electron is located in the center of atom and electrons move aroud nucleus with high speed. Scientists believed that atoms were indivisible up to 20 th century. Today we know that atoms have subatomic particles, called proton , neutron and electrons. Protons are positive particles found in the nucleus of an atom, and shown as « p » . Each element has certain number of protons which differ from other elements. Neutrons are neutral particles found in the nucleus of an atom, and shown as « n » . Electrons are negative particles that move around the nucleus of an atom, and shown as “e”. Neutral atoms have the equal number of protons and electrons. Electrons are rotating in certain places called negative energy level or shell. The electrons located in the outermost shell of atoms are called valence electron . Isotopes have the same number of protons but different number of neutrons. They have similar chemical properties but different physical properties.

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Complete the sentences and pronounce them • Atom is _____________ • From Greek language atomos means _____________ • Atom has two parts: ______ and _______ • Protons are _____________ and shown as `` p`` • Neutrons are _________ and shown as ``n`` • Electrons are _________ and shown as ``e`` • Isotopes have ___________________ .

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Complete the sentences and pronounce them • Atom is the smallest particle of substances • From Greek language atomos means very small size • Atom has two parts: nucleus and electron • Protons are positive particles found in the nucleus of atom and shown as `` p`` • Neutrons are neutral particles and shown as ``n`` • Electrons are negative particles than move around the nucleus of on atom and shown and shown as ``e`` • Isotopes have the some number of protons but different number of neutrons .

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Постер қорғау

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Put words on the atom model +-

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Put words on the atom model +- Shell Electron ProtonNeutron Nucleus

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Work in pairs. Ask the following question to a partner • What is atom? • What is the meaning of atomos from Greek language? • What are the two parts that atom has? • What is definition of protons? • What is definition of neutrons? • What is definition of electrons? • What is definition of isotope?

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