Is a theory an explanation of observable facts and phenomena?
Is a theory an explanation of observable facts and phenomena?
A theory is an explanation of observable facts and phenomena.
What must models and theories do in order to remain valid?
What must models and theories do in order to remain valid? 1: Explain all known facts. 2: Enable scientists to make correct predictions. The name given to the numerical value of 1 mole of a substance.
What is a familiar idea used to explain unfamiliar facts?
A model uses familiar ideas to explain unfamiliar facts observed in nature.
Does the word atom means invisible?
The word atom comes from atomos, a Greek word that means unable to cut or divide. At that time, the atom was thought to be invisible. Describe the three main ideas of Dalton’s atomic theory in your own words.
Who used the term atom first?
Democritus
What does the word atom literally mean?
atom Add to list Share. An atom is the basic unit of an element. The Greek root of atom is atomos, which means “indivisible,” since the scientists who first gave the atom its name imagined it couldn’t be split or divided into smaller pieces.
What is an atom in your own words?
Atom, smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical element. As such, the atom is the basic building block of chemistry.
What does the word atom in Latin means?
From Latin atomus (“smallest particle”) (borrowed via some other European language), from Ancient Greek ἄτομος (átomos, “indivisible”), from ἀ- (a-, “not”) + τέμνω (témnō, “I cut”).
What is an atom Class 9?
Atom is the smallest particle that takes part in a chemical reaction. Atoms of different elements combine with each other in a simple whole number ratio to form compound. The relative number and kinds of atoms are constant in a given compound.
What would happen if an atom was destroyed?
A lot of this has to do with the idea that matter and energy are essentially the same and that when you ‘destroy’ an atom you simply release the energy which binds the particles which form the atom together and in doing so you will see the atom turn into a bunch of particles and a burst of energy, all of which could …
Is all matter made of atoms?
All everyday objects that can be touched are ultimately composed of atoms, which are made up of interacting subatomic particles, and in everyday as well as scientific usage, “matter” generally includes atoms and anything made up of them, and any particles (or combination of particles) that act as if they have both rest …