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WorksheetsPhysics & Chemistry 4ºESO - Unit 5: Atoms (I)
Total questions: 27
Worksheet time: 14mins
Name
Class
Date
1.
Who established the following atomic model?
a)
Dalton
b)
Thomson
c)
Rutherford
d)
Bohr
2.
Who established the following atomic model?
a)
Dalton
b)
Thomson
c)
Rutherford
d)
Bohr
3.
Who established the following atomic model?
a)
Dalton
b)
Thomson
c)
Rutherford
d)
Bohr
4.
Who established the following atomic model?
a)
Dalton
b)
Thomson
c)
Rutherford
d)
Bohr
5.
Who said matter is made up of indivisible particles called atoms?
a)
Dalton
b)
Thomson
c)
Rutherford
d)
Ancient Greeks
6.
Who discovered the electron?
a)
Dalton
b)
Thomson
c)
Rutherford
d)
Bohr
7.
Who developed an atómic model where electrons are encrusted in a positive sphere?
a)
Dalton
b)
Thomson
c)
Rutherford
d)
Bohr
8.
Who said atoms of the same element are the same?
a)
Dalton
b)
Thomson
c)
Rutherford
d)
Bohr
9.
Who said the mass and the + charge are in the nucleus of the atom?
a)
Dalton
b)
Thomson
c)
Rutherford
d)
Bohr
10.
Who said the electrons with negative charge are situated in the electron cloud outside the nucleus of an atom?
a)
Dalton
b)
Thomson
c)
Rutherford
d)
Bohr
11.
Who said in the electron cloud, the electron spin in orbits at high speed?
a)
Dalton
b)
Thomson
c)
Rutherford
d)
Bohr
12.
How are atoms identified?
a)
by their protons
b)
by their electrons
c)
by their neutrons
13.
What name is given to the number of protons in an atom?
a)
mass number
b)
symbol
c)
atomic number
d)
chemical symbol
14.
What is the sum of the protons an neutrons called? (N): A = Z + N
a)
mass number
b)
symbol
c)
atomic number
d)
chemical symbol
15.
What is the letter X?
a)
mass number
b)
atómic number
c)
symbol of the element
16.
What is the letter A?
a)
mass number
b)
atómic number
c)
element
17.
What is the letter Z?
a)
mass number
b)
atómic number
c)
element
18.
What subatómic particle has a negative electrical charge?
a)
neutrons
b)
protons
c)
electrons
19.
What subatómic particle has no electrical charge?
a)
neutrons
b)
protons
c)
electrons
20.
The iron atom (Fe) has an atomic number of 26. How many electrons are in its electron cloud?
a)
26
b)
13
c)
52
21.
The iron atom (Fe) has an atomic number of 26. How many protons does it have?
a)
26
b)
13
c)
52
22.
Taking the element
How many protons does it have?
How many protons does it have?
a)
16
b)
8
c)
32
23.
Taking the element
What is its mass number?
What is its mass number?
a)
16
b)
8
c)
32
24.
Taking the element:
What is its atomic number?
What is its atomic number?
a)
16
b)
8
c)
32
25.
Taking the element:
How many neutrons does it have?
How many neutrons does it have?
a)
16
b)
8
c)
32
26.
What is the name of the element that has the atomic number of 5?
a)
hydrogen
b)
Lithium
c)
Boron
d)
Carbon
27.
What is the name of the element that has the atomic number of 3?
a)
hydrogen
b)
Lithium
c)
Boron
d)
Carbon
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