WorksheetsClass 11 Chemistry Quiz
Total questions: 12
Worksheet time: 6mins
What are elements?
Randomly arranged particles
Compounds of various atoms
Pure substances with specific properties
Mixtures of different substances
What is the smallest unit of an element?
Atom
Molecule
Compound
Mixture
What particles are found in the nucleus of an atom?
Protons and electrons
Neutrons and electrons
Protons and neutrons
Electrons and protons
What defines an element?
Number of atoms
Number of protons
Number of neutrons
Number of electrons
Which force holds protons together in the nucleus?
Electric Force
Strong Nuclear Force
Magnetic Force
Gravitational Force
What is a quark?
A subatomic particle
A type of atom
A type of element
A molecule
What is the chemical symbol for lead?
Pl
Pb
Ld
Le
Why do protons and electrons attract each other?
They are both in the nucleus
They have no charge
They have opposite charges
They have the same charge
What is the charge of a neutron?
Variable
Neutral
Negative
Positive
Which particle determines the chemical properties of an element?
Quark
Electron
Proton
Neutron
What is the atomic number of an element?
Number of quarks
Number of electrons
Number of protons
Number of neutrons
What is the charge of a proton?
Positive
Variable
Negative
Neutral
