NEW
Font size
S
M
L
XL
WorksheetsAtoms-1
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
What is the smallest building blocks of matter?
a)
Molecule
b)
Ion
c)
Atom
d)
Particle
2.
Which of the following particles is found in the shells of atom?
a)
Nucleus
b)
Proton
c)
Electron
d)
Neutron
3.
Which of the following particles has mass as much as proton?
a)
Neutron
b)
Electron
c)
Nucleus
d)
Ion
4.
Which subatomic particles determines the atomic number of atom?
a)
Neutron
b)
Electron
c)
Nucleus
d)
Proton
5.
How many protons are there in the atomic structure of sodium with 23 mass number and 11 atomic number?
a)
12
b)
11
c)
23
d)
10
6.
What will be the ionic charge of calcium when it loses 2 electron? (Z=20, A=40 for Ca)
a)
2+
b)
0
c)
2-
d)
1+
7.
Chlorine has two isotope, Cl-35 and Cl-37. Abundance of Cl-35 and Cl-37 are %75 and %25. What is the relative atomic mass of chlorine?
a)
35
b)
35.5
c)
36.5
d)
37
8.
Which of the following electronic configurations is correct for chromium with atomic number 24?
a)
1s22s22p63s23p64s23d4
b)
1s22s22p63s23p63d44s2
c)
1s22s22p63s23p63d6
d)
1s22s22p63s23p64s24p4
9.
What is the number of the valence electron in atomic structure of bromine which has atomic number of 35?
a)
4
b)
5
c)
6
d)
7
10.
What is the bonding capacity of sulfur? (16S)
a)
2
b)
4
c)
6
d)
8
Reset
