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Science Matter and Atomic Structure

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Questions and Answers

What is matter?

Anything that has mass and occupies space.

What is the fundamental building unit of matter?

Atom

Which particle is positively charged?

Molecule

Proton (correct)

Neutron

Electron

Electrons have a significant mass compared to protons and neutrons.

False Signup and view all the answers

What did Dalton develop in the early 19th century?

The first scientific theory about the atom. Signup and view all the answers

What is the charge of neutrons?

Neutral Signup and view all the answers

The nucleus contains __________ and neutrons.

protons Signup and view all the answers

What is NPK fertilizer composed of?

Nitrogen, Phosphorous, Potassium Signup and view all the answers

Who proposed the first experimental model of the atom?

Rutherford Signup and view all the answers

What is the size comparison of the nucleus to an atom?

The size of a pin compared to a baseball field. Signup and view all the answers

Study Notes

Matter

Matter is anything that has mass and takes up space.
The fundamental building unit of matter is the atom.
Protons are positively charged particles.
Electrons have a negligible mass compared to protons and neutrons.
Dalton developed the atomic theory in the early 19th century, which proposed that all matter is composed of atoms.
Neutrons have no charge, they are electrically neutral.
The nucleus contains protons and neutrons.
NPK fertilizer is composed of nitrogen, phosphorus, and potassium, essential nutrients for plant growth.
J.J. Thomson proposed the first experimental model of the atom, the "plum pudding" model.
The nucleus, containing protons and neutrons, is incredibly small compared to the overall size of an atom. It is roughly 10,000 times smaller.

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Description

This quiz covers fundamental concepts of matter and atomic structure, including the components of an atom and the contributions of Ernest Rutherford. Understand the characteristics of protons, neutrons, and electrons, and how they relate to the overall structure of matter.