Note: Periodic Table is provided in paper 1, use the table if necessary when answering questions.
Atomic Structure
S94 Question 5
The diagram shows an atom of boron. What is the proton (atomic) number and nucleon(mass) number of boron?
Ans: 5, 11
nucleon(mass) number = proton + neutron
W94 Question 5
The diagram represents an atom. What is the atomic number of this atom?
The diagram represents an atom. What is the atomic number of this atom?
Ans: 3
Atomic number = proton number
S98 Question 5
An atom of any element must contain equal numbers of
A electrons and neutrons.
B electrons and protons.
C neutrons and protons.
D electrons, neutrons and protons.
Ans: B
S98 Question 6
Which of the following has a nucleon (mass) of 3?
Ans: C
mass = protons + neutrons
S99 Question 5
How many protons, neutrons and electrons are present in an atom of the element with proton (atomic) number 6 and nucleon (mass) number 14?
protons
|
neutrons
|
electrons
|
|
A
|
6
|
8
|
6
|
B
|
6
|
8
|
8
|
C
|
8
|
6
|
6
|
D
|
8
|
6
|
8
|
Ans: A
protons =electrons, mass = protons+neutron
W00 Question 5
The diagrom represents an atom.
What is the proton number (atomic number) of this atom?
A 2 B 4 C 9 D 13
Ans: B
S01 Question 5
The Table shows the particles in an atom.
particle
|
charge
|
approximate
relative mass
|
proton
|
+1
|
1
|
electron
|
1/2000 |
|
neutron
|
0
|
1
|
Which number completes the table?
A -1 B 0 C +1 D +2
Ans: A
S02 Question 6
The diagram shows the electronic structure of an atom. What is the number of protons in the nucleus?
Ans: 13
protons = electrons
Isotopes
W94 Question 6
Deuterium and tritium are isotopes of hydrogen. What are the correct numbers for X and Y?
isotope
|
number
of protons
|
number
of neutrons
|
number
of electrons
|
nucleon
(mass) number
|
Deuterium
|
1
|
1
|
1
|
X
|
tritium
|
1
|
2
|
1
|
Y
|
X
|
Y
|
|
A
B
C
|
1
1
2
|
1
2
3
|
D
|
3
|
4
|
Ans: C
S95 Question 8
The atoms of the isotopes of an element all contain the same number of
A protons.
B neutrons.
C electrons and neutrons.
D protons, neutrons and electrons.
Ans: A
S96 Question 8
The diagram shows the structure of an atom.
Ans: A
S98 Question 6Which two diagrams show two different types of atom of the same element?
Ans: A
W99 Question 5
To be updated soon
S01 Question 6
The table gives the number of protons, neutrons and electrons in four particles; 1, 2, 3 and 4.
number
of
|
|||
particle
|
protons
|
neutrons
|
electrons
|
1
|
11
|
12
|
10
|
2
|
11
|
12
|
11
|
3
|
11
|
13
|
11
|
4
|
12
|
11
|
10
|
Which particles are atoms that are isotopes of each other?
A 1 and 2
B 1 and 4
C 2 and 3
D 3 and 4
Ans: C
W02 Question 5
The diagrams show the nuclei of four different atoms.
Which two atoms are isotopes of each other?
A Q and R B Q and T C R and S D S and T
Ans: A
nuclei is plural form of nucleus
S03 Question 5
Which number in the table is -1?
Particle
|
charge
|
relative mass
|
electron
|
A
|
B
|
neutron
|
C
|
1
|
proton
|
D
|
1
|
Ans: A
S94 Question 9
What are the correct symbols for the elements chlorine, nitrogen and bromine?
Ans: Cl (chlorine)
N (nitrogen)
Br (bromine)
thank u sooo much..very helpful..will defntly reccmnd
ReplyDeleteS99 q5 is wrong. It is A
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