Terms & Questions | Chap 1. Atoms & Mocules Flashcards

Ending chapter Terms and Questions

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1
Q

Atom

A

Basic unit of matter with a nuclues composed of Protons,Neutrons and orbiting Electrons.

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2
Q

Atomic Mass

A

Also called Atomic weight is the number of Protons and Neutrons in an Atom.

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3
Q

Atomic Number

A

The number of Protons in an Atom.

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4
Q

Covalent Bonds

A

The sharing of electrons by atoms through a chemical bond. This process usually forms to resembe a Noble Gas, as they have stable Electron Shells.

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5
Q

Electron

A

Negatively charged particle that orbits the the Nucleus of an Atom at the speed of light.

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6
Q

Elements

A

Building block of matter that cannot be broken down to any simpler substances. Elements are made of that Element’s Atom. etc. Au/Gold are made of gold atoms.

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7
Q

Energy

A

Capacity/Ability to do work or cause change.

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8
Q

Glucose

A

A simple sugar mixture with a molecular formula of 6C12H6O.

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9
Q

Hydrogen Bonds

A

Weak electrical bonds between the positive and negative ends of molecules, that together in large qunatity result in a three-dimensional shape that can hold molecules together.

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10
Q

Ions

A

Electrically charged particles formed when and Atom gains or loses Electrons. Ions are neutrally charged having the same amount of Electrons and Protons.

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11
Q

Ionic Bond

A

Chemical bond formed between two Atoms, where one donates an electron. This process creates positively and negatively charged Ions.

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12
Q

Isotopes

A

Elements that have the same Atomic Number (same amount of protons) but contrast in Atomic Mass, due to differing number of Neutrons.

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13
Q

Matter

A

Anything that has mass and occupies space.

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14
Q

Molecules

A

Compounds in which elements are in definite, fixed ratios. Due to either a covalent or ionic bond.

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15
Q

Neutron

A

A neutrally charged particle, located inside the nucleus. Variability of neutrons within elements that have the same protons are termed isotopes.

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16
Q

Atomic Nucleus

A

Sphererical center part of the atom containing protons and neutrons.

17
Q

Polar Covalent Bond

A

Unequal sharing of Atoms between nonmetal Elements that results in a slightly positive charge in one Atom and negative in the other Atom.

18
Q

Proton

A

Positively charged particle inside the nucleus with an Atomic Mass Unit of 1.

19
Q

Radioactivity

A

Decay of an atom to a different element by emitting particles from an unstable nucleus.

20
Q

Which of these is not a subatomic particle?
a. Proton
b. Ion
c. Neutron
d. Electron

A

b. Ion

21
Q

The outermost electron shell of every Noble Gas element (except Helium) has electrons.
a. 1
b. 2
c. 4
d. 6
e. 8

A

e. 8

22
Q

An organic molecule is likely to contain all of these elements except.
a. C
b. H
c. O
d. Ne
e. N

A

d. Ne

23
Q

What kind of Chemical Bond is between Water molecules?
a. Ionic
b. Polar Covalent
c. Nonpolar Covalent
d. Hydrogen

A

b. Polar Covalent

24
Q

A solution with a pH of 7 has times more H ions than a solution of pH 9.
a. 2
b. 100
c. 1000
d. 9
e. 90

A

b. 100

25
Q

What type of Chemical Bond is formed when Electrons are shared between Atoms?
a. Ionic
b. Covalent
c. Hydrogen

A

b. Covalent

26
Q

The type of chemical bond formed when oppositely charged particles are attrached to each other is an
a. Ionic Bond
b. Covalent Bond
c. Hydrogen Bond
d. Wavelengths

A

a. Ionic

27
Q

Electrons occupy volumes of space known as.
a. Orbitals
b. Nuclei
c. Wavelengths

A

a. Orbitals

28
Q

Carbon has an Atomic Mass of 6. This means it has?
a. 6 Protons + 6 Neutrons
b. 6 Neutrons + 6 Electrons

A

a. 6 Protons and Neutrons

29
Q

Each of the isotopes of hydrogen has proton(s).
a. 3
b. 1
c. 2
d. 92
e. 1/2

A

1 Proton

30
Q

Molecule

A

A combination of one or more atoms that will have a fixed ratio of its components.