Science Double Award - 4SD0 PearsonEdexcel

Atomic Structure

Bayani Gaba-gaba

Every substance you encounter, from the iron in a bridge to the oxygen you breathe, is made of atoms. These incredibly small particles have an internal structure that determines which element they belong to, how they bond, and how they react. Understanding what sits inside an atom is the starting point for almost all of chemistry.

In this lesson you will learn the difference between atoms and molecules, discover the three sub-atomic particles and where they sit, and master the key terms: atomic number, mass number, and isotope. You will also practise calculating relative atomic mass from isotopic abundance data, a skill tested frequently on Paper 1.

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

For thousands of years, people believed that matter could be divided into ever-smaller pieces without limit. Then came the idea of the atom: a fundamental particle so small that splitting it further changes its identity. Today we know that atoms themselves have an internal structure, and that understanding this structure is the key to understanding chemistry.

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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. What is the atomic number of an element? A) The number of neutrons B) The number of protons C) The number of protons and neutrons D) The number of electrons and neutrons Answer: B
  2. An atom has 12 protons and a mass number of 24. How many neutrons does it have? A) 12 B) 24 C) 36 D) 6 Answer: A
  3. Which statement about isotopes is correct? A) They have different numbers of protons B) They have different numbers of electrons C) They have different numbers of neutrons D) They belong to different elements Answer: C
  4. The relative charge on an electron is: A) +1 B) 0 C) -1 D) -2 Answer: C
  5. Bromine has two isotopes: Br-79 (50%) and Br-81 (50%). What is the relative atomic mass? A) 79 B) 80 C) 81 D) 160 Answer: B

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

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

Yi Aikin Tambayoyin Gwaji

Kana son yin aikin tambayoyin gwaji kan Atomic Structure? Sauke manhajar Green Bridge CBT don samun tambayoyin gwaji da cikakkun jarrabawa akan wannan batu.

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