Chemistry Test 4

which of the following was a belief that matter was made of separate discrete particles?

• Atomism
• Kinetic Theory
• Quantum Mechanics
• Molecular Theory

which of the following refers to a relationship in which masses of elements can combine to form a particular ration that can be reduced to small whole number ratios?

• Law of multiple proportions
• Law of conservation of mass
• Law of definite proportions
• Law of thermodynamics

Tags

NGSS.HS-PS1-7

the fact that any sample of water contains 8g of oxygen for every 1g of hydrogen illustrates

• the principle of superposition
• the law of conservation of mass
• the theory of relativity
• the law of definite proportions

Tags

NGSS.HS-PS1-7

which of the following chemists experimentations with compounds eventually led to the formulation of the law of definite

• Robert Boyle
• Marie Curie
• Joseph Proust
• Dmitri Mendeleev

who concluded that that every atom contained small negatively charged particles?

• Albert Einstein
• Niels Bohr
• Erwin Schrödinger
• J.J. Thomson

who formed a new atomic model due to the discoveries of the alpha particle experiment?

• J.J. Thomson
• Niels Bohr
• James Chadwick
• Ernest Rutherford

the number of protons in the nucleus of an atom is called?

• Mass number
• Atomic number
• Neutron count
• Electron configuration

changes were made to Rutherfords atomic model to include the addition of...

• particles

• electrons

• protons

• neutrons

in atomic notation, Z represents the number of what in an atom?

• Nucleons
• Protons
• Electrons
• Neutrons

an isotope of an element has the same number of protons but a different number of

• neutrons
• molecules
• protons
• electrons

Tags

NGSS.HS-PS1-8