FREE CHEMISTRY AND STUDY GAMES ABOUT B W CH 2

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CHEMISTRY EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

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-Guarantee passing score -34 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Elements in Group 2 of the periodic table.

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Alkaline Earth Metals Question 2: A class of elements characterized by physical properties that include shininess, malleability, ductility, and conductivity.

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Metals

Question 3: A one- or two letter representation of an element.

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Chemical symbol

Question 4: The sum of the protons and neutrons in the nucleus of an atom.

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Mass number

Question 5: A mixture of two or more elements, one of which is a metal.

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Alloy

Question 6: The average mass of all the isotopes of an element.

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Atomic mass Question 7: The ability of an object to transfer heat or electricity to another object.

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Conductivity Question 8: A machine that moves atomic nuclei at higher and higher speeds until they crash into one another, sometimes forming heavier elements.

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Particle accelerator

Question 9: A substance that can conduct electricity under some conditions.

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Semiconductor Question 10: The ease and speed with which an element combines, or reacts with other elements and compounds.

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Reactivity Question 11: An atom with the same number of protons and a different number of neutrons from the other atoms of the same element.

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Isotope

Question 12: Elements in Group 1 of the periodic table.

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Alkali Metals

Question 13: The number of protons in the nucleus of an atom.

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Atomic number Question 14: A chart of the elements showing the repeating patterns of their properties.

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Periodic Table

Question 15: An element that lacks most of the properties of a metal.

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Nonmetal

Question 16: Elements in Group 3 - Group 12 of the periodic table.

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Transition Metals Question 17: A term used to describe material that can be pulled out into a long wire.

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Ductile

Question 18: A term used to describe material that can be pounded into shapes.

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Malleable Question 19: Elements in the same vertical column of the periodic table; also called a family.

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Group Question 20: The gradual wearing away of a metal element due to a chemical reaction.

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Corrosion

Question 21: A state of matter that consists of a gas-like mixture of free electrons and atoms stripped of their electrons.

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Plasma Question 22: An element that has some characteristics of both metals and nonmetals.

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Metalloid Question 23: The cloud-like region of gases left over in the remains of a shrinking, sun-sized star.

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Nebula Question 24: The process in which two atomic nuclei combine to form a larger nucleus, forming a heavier element and releasing huge amounts of energy.

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Nuclear fusion

Question 25: Small, positively charged particle in the nucleus of the atom.

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Proton

Question 26: The very small center core of an atom.

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Nucleus Question 27: Small particle in the nucleus of an atom, with no electrical charge.

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Neutron

Question 28: A molecule consisting of two atoms.

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Diatomic molecule