Atoms & Periodic Table Flashcards

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1
Q

Atom

A

The smallest particle into which an element can be divided and still be the same substance.

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2
Q

Atom Charge

A

Neutral/no charge

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3
Q

Nucleus

A

The tiny extremely dense, positively charged region in the center of an atom. (Has Protons and Neutrons)

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4
Q

Protons

A

The positively charged particles in the nucleus (CANNOT CHANGE THE AMOUNT OF PROTONS)

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5
Q

Neutrons

A

The particles in the nucleus that have no charge.

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6
Q

Electrons

A

The negatively charged particles found in all atoms. (Virtually no mass)

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7
Q

Quarks

A

The smaller particles that make up protons and neutrons.

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8
Q

Quark Charge

A

Neutral/No charge

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9
Q

Isotope

A

An atom that has a different number of neutrons than usual. (Almost every atom)

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10
Q

Ion

A

An atom that has a different number of electrons than usual.

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11
Q

An-Ion

A

Negative/gained electrons

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12
Q

Cat-Ion

A

Positive/lost electrons

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13
Q

Electron Energy

A

Any of the several different regions in which electrons travel about the nucleus.

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14
Q

Valence Shell

A

The outermost energy level around the nucleus.

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15
Q

Valence Electrons

A

Electrons which are only found in the valence shell. (Atomic number -2)

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16
Q

Atomic Mass Unit

A

The SI unit used to express the masses of particles in an atom.

17
Q

Atomic Number

A

The number of protons in the nucleus.

18
Q

Mass Number

A

The sum of the protons and neutrons in an atom.

19
Q

Atomic Mass

A

The weighted average of the masses of all the naturally occurring isotopes of an element.

20
Q

Metals

A

Found to the left of the zigzag line. (Solid at room temp, shiny and malleable, good conductor.)

21
Q

Non-Metals

A

Found to the right of the zigzag line. (Most gasses at room temp, not malleable or shiny, poor conductors.)

22
Q

Metalloids

A

Also called semiconductors, found at the border of the zigzag line. have properties of both metals and non metals.

23
Q

Groups

A

Vertical columns of the elements on the periodic table. (Top to bottom.)

24
Q

Periods

A

Horizontal rows of elements on the periodic table. (Side to Side)

25
Q

Malleable

A

The ability of a metal to be hammered or rolled into a flat sheet.

26
Q

Ductile

A

The ability of a metal to be pulled out, or drawn into a long wire.

27
Q

Mendeleev

A

Periodic table by atomic masses.

28
Q

Moseley

A

periodic table by atomic number.

29
Q

periodic law

A

The chemical and physical properties of the elements and periodic functions of the atomic number.

30
Q

Reactivity

A

The destruction of metal through rusting.

31
Q

Corrosion

A

The ease and speed with which an element combines or reacts with other elements and compounds.

32
Q

Ionic Bond

A

(Transferred) Metal + Non-metal

33
Q

Covalent bond

A

(Shared) Non-metal+Non-metal
Metalloid+Non-metal

34
Q

First 13 elements

A

Hydrogen, Helium,Lithium, Beryllium,Boron,Carbon,
Nitrogen,Oxygen,Fluorine,Neon,Sodium, Magnesium,Aluminum.

35
Q

What are the families (from left the right.)

A

Alkali metals, Alkaline earth metals, Transitional metals, Lanthanides, Actinides, Metals, Metalloids, Non-Metals, Halogen, Noble gasses.