OCR Gateway (9-1) Topic 1

1. 1How many neutrons does a sodium atom have?

   1. A1
   2. B11
   3. C12
   4. D23
2. 2What subatomic particle causes atoms to have different isotopes?

   1. Aneutron
   2. Belectron
   3. Cproton
3. 3This scientist figured out there was atoms contain a positive nucleus, from an experiment where they fired alpha particles at gold.

   1. ARutherford
   2. BBohr
   3. CThomson
   4. DEinstein
4. 4Protons have a relative mass of [blank_start]1[blank_end], and a relative charge of [blank_start]+1[blank_end]
   Neutrons have a relative mass of 1, and a relative charge of [blank_start]0[blank_end]
   Electronshave a relative mass of [blank_start]1/2000[blank_end], and a relative charge of [blank_start]-1[blank_end]

   1. A1
   2. B+1
   3. C0
   4. D1/2000
   5. E-1
5. 5An atom has a radius of about 0.1 nm

   1. AVerdadero
   2. BFalso
6. 6The number of [blank_start]protons[blank_end] in an element, defines the element. Every atom of one element has the same number of these particles.

   1. Aprotons
   2. Belectrons
   3. Cneutrons
7. 7Isotopes have:

   1. Athe same atomic number, but different mass numbers
   2. Bthe same mass number, but different atomic numbers
8. 8Which of the following statements describe a solid?

   1. Aparticles are close
   2. Bparticles are randomly arranged
   3. Cparticles are able to move around each other
   4. Dparticles vibrate around a fixed position
   5. Eparticles are arranged in a regular pattern
   6. Fparticles have low energy
   7. Gparticles have high energy
9. 9Which of the following is not a limitation to the particle model?

   1. Athere are no forces of attraction between particles
   2. Ball particles are represented as spheres
   3. Cthe spheres are inelastic solids
   4. Dthe particles have no movement
10. 10Select all the correct state symbols that can be used:

    1. A(s)
    2. B(l)
    3. C(g)
    4. D(aq)
    5. E(d)

11. 11Changing from one state to another is a physical change.

    1. AVerdadero
    2. BFalso

Descripción

GCSE (OCR Gateway) Chemistry Test sobre OCR Gateway (9-1) Topic 1, creado por https:// revisechemistry.uk el 20/04/2019.

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gcsechemistryatomsatomic structureelectronselementsprotonsneutronsocrocr gateway

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