atoms quiz scms

The particles that are found in the nucleus of an atom are

• neutrons and electrons

• electrons only

• protons and neutrons

• protons and neutrons

Which subatomic particle has a negative charge?

• Electons

• Protons

• Neutrons

• Ions

What gives an atom mass?

• Protons & electrons in the cloud

• protons & neutrons in the nucleus

• electrons in the cloud

• Protons & electrons in the nucleus

The sum of the protons and neutrons in the nucleus of an atom

• Mass Number (also called Atomic Mass)

• Atomic Number

• Compound

• Electrons

How many neutrons does Chlorine (Cl) with an atomic number of 17 and an atomic mass of 35.

• 17

• 19

• 18

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The smallest particle into which an element can be divided and still be the same element is a(n)

• Proton

• Atom

• Neutron

• Electron

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The basic structural unit of matter

• Nucleus

• Matter

• Element

• Atom

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What did Democritus believe about atoms?

• Atoms are divisible and can be destroyed

• Atoms do not exist

• Atoms are indivisible and indestructible particles that make up all matter.

• Atoms are made up of smaller particles

According to Dalton, what are atoms made of?

• Atoms are made of energy and matter.

• Atoms are made of tiny particles called molecules.

• Atoms are made of protons, neutrons, and electrons.

• Atoms are not made of anything, they are indivisible and indestructible particles.

What is the plum pudding model proposed by Thomson?

• A model of the atom in which the atom is composed of a neutral sphere with no charged particles embedded within it.

• A model of the atom in which the atom is composed of a negatively charged sphere with positively charged electrons embedded within it.

• A model of the atom in which the atom is composed of a positively charged sphere with no charged particles embedded within it.

• A model of the atom in which the atom is composed of a positively charged sphere with negatively charged electrons embedded within it.

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