WorksheetsThe structure of an atom (วิชาภาษาอังกฤษสำหรับครูวิทยาศาสตร์)
Total questions: 13
Worksheet time: 7mins
Name
Class
Date
1.
ชื่อ-สกุล
4 lines
2.
รหัสนักศศึกษา
4 lines
3.
หมู่เรียน
a)
หมู่ 1
b)
หมู่ 2
4.
What are the three main subatomic particles of an atom?
a)
Protons, positrons, and neutrons
b)
Protons, electrons, and neutrons
c)
Protons, neutrons, and muons
d)
Electrons, neutrons, and photons
5.
How does the number of protons in an atom affect its identity?
a)
It affects the number of neutrons
b)
It determines the element's atomic number
c)
It changes the mass of the atom
d)
It influences the atom's charge
6.
What is the relative mass of a neutron compared to a proton?
a)
Neutrons have no mass
b)
Neutrons are heavier than protons
c)
Neutrons are lighter than protons
d)
Neutrons have the same mass as protons
7.
What happens to the stability of an atom if it has too many or too few neutrons?
a)
The atom gains protons
b)
The atom loses electrons
c)
The atom becomes unstable
d)
The atom becomes more reactive
8.
Which of the following best describes isotopes?
a)
Atoms with different atomic numbers
b)
Atoms with the same number of protons but different numbers of neutrons
c)
Atoms with the same number of neutrons but different numbers of protons
d)
Atoms with the same number of protons but different numbers of electrons
9.
What is the charge of an electron?
a)
Neutral
b)
Negative
c)
Positive
d)
Variable
10.
Which statement is true about the number of electrons in a neutral atom?
a)
It varies depending on the element
b)
It is less than the number of protons
c)
It is equal to the number of protons
d)
It is always greater than the number of protons
11.
In which model do electrons orbit the nucleus in distinct energy levels?
a)
Rutherford model
b)
Thomson model
c)
Bohr model
d)
Quantum mechanical model
12.
What does the quantum mechanical model describe about electrons?
a)
Their exact position around the nucleus
b)
Their fixed paths around the nucleus
c)
Their probability of being found in certain regions
d)
Their mass compared to protons
13.
How does the arrangement of subatomic particles affect an element's properties?
a)
It determines the element's color
b)
It influences the element's reactivity
c)
It affects the element's temperature
d)
It changes the element's density
100 %
