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Chemistry Mocks

Descripción

Especially made for year 9 students of BYA to prepare for the upcoming mock exam in 9 days.
Greiane C
Test por Greiane C, actualizado hace más de 1 año
Greiane C
Creado por Greiane C hace más de 9 años
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Resumen del Recurso

Pregunta 1

Pregunta
Who came up with an idea in 460-370 BC that atoms existed , couldn't split or destroy them?
Respuesta
  • Dalton
  • Democritus
  • Thomson
  • Rutherford

Pregunta 2

Pregunta
Who came up with an idea in 1800's that atoms are hard spheres with differing properties?
Respuesta
  • Dalton
  • Thomson
  • Rutherford
  • Democritus

Pregunta 3

Pregunta
Who discovered electrons in 1897 and came up with the Plum Pudding model?
Respuesta
  • Rutherford
  • Thomson
  • Democritus
  • Dalton

Pregunta 4

Pregunta
Who had a gold foil experiment in 1911 that made the plum pudding model wrong , and came up with an idea that most of an atom is an empty space?
Respuesta
  • Rutherford
  • Democritus
  • Dalton
  • Thomson

Pregunta 5

Pregunta
What did Bohr-Rutherford came up with in 1912?
Respuesta
  • He came up with an idea that electrons are in energy shells and they orbit around the nucleus
  • He came up with an idea that nucleus are full of dejunctional energy
  • He came up with an idea that atoms are small hard spheres
  • He came up with an idea that people just dream so big but end up in a street.
  • He came up with an idea that the atom particles consists of further smaller parts.

Pregunta 6

Pregunta
Electrons always [blank_start]equal[blank_end] the number of protons
Respuesta
  • equal

Pregunta 7

Pregunta
Protons have a charge of [blank_start]+ve[blank_end] and a mass of [blank_start]1[blank_end]
Respuesta
  • +ve
  • 1

Pregunta 8

Pregunta
Electrons have a charge of [blank_start]-ve[blank_end] and a mass of [blank_start]1/1836[blank_end]
Respuesta
  • -ve
  • 1/1836

Pregunta 9

Pregunta
Neutrons have a charge of [blank_start]0[blank_end] and a mass of [blank_start]1[blank_end]
Respuesta
  • 0
  • 1

Pregunta 10

Pregunta
Atomic mass and mass number the same thing?
Respuesta
  • True
  • False

Pregunta 11

Pregunta
Mass number // Atomic mass : It is the number of [blank_start]protons[blank_end] and [blank_start]electrons[blank_end] in an atom . *Put it in plural form and make the answer with a letter P starting on it first.*
Respuesta
  • protons
  • electrons

Pregunta 12

Pregunta
Which one is the atomic mass and the atomic number?
Image:
Mobile upload (image/jpeg)
Respuesta
  • Atomic number
  • Mass number

Pregunta 13

Pregunta
Get a periodic table and fill the missing answers.
Image:
Mobile upload (image/jpeg)
Respuesta
  • 11
  • 23
  • 11
  • 11
  • 12

Pregunta 14

Pregunta
Isotopes are the different atoms of the same element containing the [blank_start]same[blank_end] number of [blank_start]protons[blank_end] but different amount of [blank_start]neutrons[blank_end].
Respuesta
  • same
  • protons
  • neutrons

Pregunta 15

Pregunta
Isotopes , fill in how many protons and neutrons in each isotope . Ignore the electrons .
Image:
Mobile upload (image/jpeg)
Respuesta
  • 6
  • 6
  • 6
  • 6
  • 7
  • 8

Pregunta 16

Pregunta
[blank_start]Omitri[blank_end] [blank_start]Mandelev[blank_end] created the periodic table in [blank_start]1869[blank_end] , he arranged it in order of [blank_start]increasing[blank_end] atomic mass.
Respuesta
  • Omitri
  • Mandelev
  • 1869
  • increasing

Pregunta 17

Pregunta
Electron configuration. The first energy shell can hold a maximum of [blank_start]2[blank_end] electrons , the second and so on can hold a maximum of [blank_start]8[blank_end] electrons.
Respuesta
  • 2
  • 8

Pregunta 18

Pregunta
The electric configuration for sodium is 2.[blank_start]8[blank_end].[blank_start]1[blank_end].
Respuesta
  • 8
  • 1

Pregunta 19

Pregunta
An Ion is an [blank_start]electrically[blank_end] charged particle
Respuesta
  • electrically

Pregunta 20

Pregunta
Ionic bonding=[blank_start]Transfer[blank_end] of [blank_start]electrons[blank_end].
Respuesta
  • Transfer
  • electrons

Pregunta 21

Pregunta
One way of atoms of different elements forming chemical bonds to make a new compound is by IONIC BONDING
Respuesta
  • True
  • False

Pregunta 22

Pregunta
The element that loses its electron will become [blank_start]positive[blank_end] and the element that gains the electron will become [blank_start]negative.[blank_end]
Respuesta
  • positive
  • negative.

Pregunta 23

Pregunta
Which one is the Anion and the Cation?
Image:
Mobile upload (image/jpeg)
Respuesta
  • cation
  • anion

Pregunta 24

Pregunta
Read the image .
Image:
Mobile upload (image/jpeg)
Respuesta
  • True
  • False

Pregunta 25

Pregunta
Read the image.
Image:
Mobile upload (image/jpeg)
Respuesta
  • True
  • False

Pregunta 26

Pregunta
What's the name of the new compound ?
Image:
Mobile upload (image/jpeg)
Respuesta
  • calcium sulfide

Pregunta 27

Pregunta
In potassium sulfate , there's potassium , sulphur , and [blank_start]oxygen[blank_end] .
Respuesta
  • oxygen

Pregunta 28

Pregunta
Depending on the group number , you can find out the valency number.
Respuesta
  • True
  • False

Pregunta 29

Pregunta
From group number 1-8 , list the valencies from the 1st group number to the last.
Respuesta
  • 1 , 2 , 3 , 4 ,3 , 2 , 1 ,0
  • 2 , 6 , 8 ,10 , 12 ,14 ,16 , 18
  • 3 , 2 , 4 ,1 , 5 , 6 ,7 ,8

Pregunta 30

Pregunta
The diatomic elements are B[blank_start]romine[blank_end] , I[blank_start]odine[blank_end] , n[blank_start]itrogen[blank_end] , chlorine , oxygen , and fluorine .
Respuesta
  • romine
  • odine
  • itrogen

Pregunta 31

Pregunta
Transition metals valency is always [blank_start]2[blank_end] unless told otherwise by Roman numerals.
Respuesta
  • 2
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