Science Single Award - 4SS0 PearsonEdexcel

Atomic Structure

Bayani Gaba-gaba

Everything you can touch, taste, or breathe is made from atoms. Although atoms are far too small to see with the naked eye, understanding their internal structure explains why elements behave the way they do, why the Periodic Table is arranged the way it is, and how chemical reactions happen.

In this lesson you will learn what atoms and molecules are, explore the sub-atomic particles inside every atom, and discover how atomic number and mass number define an element. You will also meet isotopes and learn how to calculate relative atomic mass from isotopic abundances.

Manufura

  1. Know what is meant by the terms atom and molecule
  2. Know the structure of an atom in terms of the positions, relative masses and relative charges of sub-atomic particles
  3. Know what is meant by the terms atomic number, mass number, isotopes and relative atomic mass (Ar)
  4. Be able to calculate the relative atomic mass of an element (Ar) from isotopic abundances

Takardar Darasi

A single grain of sand contains roughly 50 billion billion atoms. Each one has an internal structure that determines how the atom bonds, reacts, and behaves. Once you understand what is inside an atom, most of chemistry clicks into place.

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Nazarin Darasi

Barka da kammala darasi akan Atomic Structure. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.

Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.

Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.

  1. Which sub-atomic particle has a relative charge of -1? A) Proton B) Neutron C) Electron D) Nucleus Answer: C
  2. The atomic number of an element tells you the number of: A) Neutrons B) Protons C) Electrons in the outer shell D) Protons and neutrons Answer: B
  3. Two isotopes of the same element have the same: A) Mass number B) Number of neutrons C) Atomic number D) Relative atomic mass Answer: C
  4. What is the electron configuration of magnesium (atomic number 12)? A) 2, 8, 1 B) 2, 4, 6 C) 2, 8, 2 D) 8, 4 Answer: C
  5. The relative atomic mass of an element is 35.5. This means: A) Each atom has a mass of 35.5 B) It is the average mass of its isotopes weighted by abundance C) It has 35.5 protons D) It has 35.5 neutrons Answer: B

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Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.

Cikakkiyar bayanan darasi tare da zane-zane
Mataimakiyar koyo da AI
Yi karatu ba tare da intanet ba, a kowane lokaci, a ko'ina
Akwai a Android, Windows, macOS, da Linux

Akwai a cikin manhajar Green Bridge

Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.

Cikakkiyar bayanan darasi tare da zane-zane
Mataimakiyar koyo da AI
Yi karatu ba tare da intanet ba, a kowane lokaci, a ko'ina
Akwai a Android, Windows, macOS, da Linux

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