Basic Atomic Structure Flashcards

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1
Q

Matter

A

Anything in existence excluding energy. in other words something that has mass.

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2
Q

Nucleus

A

The center of a atom primarily made of protons where neutrons are used to keep the protons in place

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3
Q

Proton

A

One of the smallest type of matter with an amu of 1 and a positive charge.Can be found inside the nucleus

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4
Q

Neutron

A

Another type of matter with amu equivalent to that of a proton and with no charge.It is found in the nucleus

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5
Q

Electron

A

An atomic particle with a negative charge that can be found in shells orbiting the nucleus

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6
Q

AMU

A

The unit invented to describe the mass of objects as small as an atom

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7
Q

Atomic Number

A

The number of protons in an atom which defines which of the many elements it is

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8
Q

Atomic Mass

A

The total weight of the entire atom of the element that the atomic mass is describing. Approximately equivalent to the sum of the protons and neutrons due to the fact that the electrons are of minuscule mass.However, the atomic mass may not always be correct due to the fact that one must keep isotopes in mind.

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9
Q

Element

A

A single unique type of atom with its own atomic number.Currently there are 118 elements.Look towards the periodic table deck for more information.

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10
Q

Compound

A

Compounds are two elements that are CHEMICALLY BONDED rather than simply added together.A compound differs from a mixture due to that fact.

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11
Q

Electron shells

A

The shells inside which electrons are contained.The amount of them can be determined by the period of the row on the periodic table.

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12
Q

Periodic Table

A

Invented by Dmitri Mendeleev the periodic table is a helpful tool in chemistry.It depicts the various different elements positioned according to atomic number, group(orbitals) as well as period(amount of electron shells) and the actual group(eg Noble Gases,Lanthanides Alkali Earth Metals)

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13
Q

Alchemist

A

Olden-day chemists who mixed chemicals and tried to turn ordinary metals into gold.They also made attempts to see the future.

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14
Q

Investigation

A

Activity aimed at finding information

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15
Q

Observations

A

Information obtained by the use of our senses or measuring instruments

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16
Q

Scientists

A

People skilled in or working in the fields of science; scientists use experiments to find out about the material world around them

17
Q

Elements

A

Pure substance made up of only one type of atom

18
Q

Atom

A

A very small particle that makes up all things. Atoms have the same properties as the objects they make up.

19
Q

Chemical Symbol

A

The standard way that scientists write the names of the elements, using either a capital letter or a capital followed by a lowercase letter. For example, carbon is C and copper is Cu

20
Q

Cation

A

Positively charged ion

21
Q

Anion

A

Negatively charged ion add suffix -ide

22
Q

Ion

A

That has lost electrons or gained them to make its valence shell full or to get rid of it’s valence shell

23
Q

Mixture

A

Substances that are physically bonded together.Eg squeezed mixed