WorksheetsParts of atoms
Total questions: 30
Worksheet time: 17mins
Name the subatomic particles present in an atom.
Electrons
Protons
Neutrons
All
The smallest particle into which an element can be divided and still be the same element is a(n)
proton
neutron
electron
atom
Which subatomic particle has a neutral (0) charge?
proton
nuetron
electron
atom
Why is the overall charge of an atom neutral (0)?
They have the same number of protons and neutrons.
They have the same number of protons and electrons.
They have the same number of electrons and neutrons.
Which TWO of the following subatomic particles are inside the nucleus?
protons
electrons
neutrons
There are no subatomic particles in the nucleus of an atom.
Where is the element's atomic NUMBER located?
the top
the bottom
the top + the bottom
the number of protons + the number of neutrons
Where is the element's atomic MASS located?
at the top
at the bottom
the top number + the bottom number
the number of protons + the number of neutrons
Positively charged particles in the nucleus of hydrogen atom have mass equals to __
1/1840 a.m.u
1 a.m.u
2 a.m.u
1 grams
Mass of electrons is equal to __________ mass of protons.
1 a.m.u
1 gram
1840 a.m.u
1/1840 a.m.u
A substance that cannot be broken down into simpler substances by any chemical mean is known as
Atom
Element
Compound
Molecule
An element X is having 11 atomic number and 23 mass number. How many neutrons are there in the nucleus of an atom of X
11
23
12
34
Which subatomic paticles dont count towards mass of an atom?
Protons
Electrons
Neutrons
An Element has atomic number 17 and mass number 35. How many electrons are there in the nucleus of an atom of that element?
18
17
35
What electrons are doing outside the nucleus?
Rotating
Revolving
not moving
nothing
x
If same number of elctrons and protons are present in an atom, what will be the overall charge on atom?
Positive
negative
Neutral
What is symbol of Iron?
Ir
Fe
F
On
Every element is abbreviated by _________of an atom.
Formula
Symbol
Compound
Name
An element has 6 protons, 6 electrons and 8 neutrons. What is the atomic number of that element?
6
12
14
16
