30 Questions
What are found in the nucleus of an atom?
Protons and Neutrons
What is the negatively charged particle of an atom?
Electrons
What is the positively charged particle of an atom?
Protons
What is the particle of an atom that has no electrical charge?
Neutron
The word 'atom' comes from Greek 'Atomos' which means what?
Indivisible
Who was the first person to propose that atoms have weights?
Democritus
What is the total number of electrons in a neutral carbon atom?
6
In an atom, the number of protons is also known as the:
Atomic number
Which subatomic particle is responsible for chemical bonding?
Electrons
What is the total number of neutrons in a neutral helium atom?
2
Who discovered the electron?
Joseph John Thomson
What is a substance that cannot be broken down into simpler substances?
Element
What is the result of the combination of two or more elements in definite proportion of mass?
Compound
Which classification includes suspension, colloids, or solutions?
Mixture
What is an example of a homogeneous mixture?
Air
Who discovered the neutron?
James Chadwick
What is anything that occupies space and has mass?
Matter
Which scientist discovered the proton?
Ernest Rutherford
What are the three states of matter?
Solid, liquid, and gas
What is an example of a suspension?
Soil and water
Which of the following is NOT an intensive property of a material?
Surface area
Who formulated the atomic theory?
John Dalton
What is the unit for the charge of a particle?
Charge unit
What is the charge of an electron in coulombs?
-1.60217733 x 10^-19
What is the charge of an electron in charge units?
1 -
The discovery of radioactivity further confirms the existence of subatomic particles. Who discovered radioactivity?
Henri Becquerel
Which of the following is NOT an extensive property of a material?
Density
How does Joseph John Thomson call his model of the atom?
Plum-pudding model
Who revised the atomic theory by replacing the hard, indestructible spheres imagined by Dalton and proposed the 'raisin bread model' of the atom?
Joseph John Thomson
The properties of a material that do not change when the amount of substance changes are called _______ properties.
Intensive
Study Notes
Chemistry Basics Summary
- Joseph John Thomson discovered the electron
- Ernest Rutherford discovered the proton
- James Chadwick discovered the neutron
- Matter is anything that occupies space and has mass
- All forms of matter are composed of atoms
- Substances are classified as elements or compounds
- An element is a substance that cannot be broken down into simpler substances
- A compound results from the combination of two or more elements in definite proportion of mass
- Mixtures are classified as suspension, colloids, or solutions
- Soil and water is an example of a suspension
- A homogeneous mixture of sugar dispersed in water is called a solution
- The three states of matter are solid, liquid, and gas
Test your knowledge of basic chemistry concepts with this summary quiz. Explore the discoveries of key particles, understand the classification of matter, and learn about elements, compounds, and mixtures. Whether you're a student or just curious about the fundamentals of chemistry, this quiz is a great way to refresh your understanding.
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