Chapter 2A-1 Flashcards

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0
Q

What is a atom

A

Partials that make up matter

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1
Q

What is matter

A

Something that occupies space, anything that has mass

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2
Q

What are the parts, charges, and locations of the parts of a atom

A

Protons- positive- inside, electrons- negative-outside, neutron- no charge- in nucleus

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3
Q

List the four main elements that are essential to life

A

Hydrogen, oxygen, carbon, nitrogen

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4
Q

The atomic number on the periodic table indicates..

A

Protons in a atom

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5
Q

If the number of protons in a atom is 8 how many electrons are there…and how many neutrons are there…

A

8 and 8

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6
Q

If you could change the number of protons in a element it would be…

A

Different element

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7
Q

If you change the number or electrons in a atom it is a..

A

Ion

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8
Q

What part of an atom forms a bond with another atom?

A

The electron shell

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9
Q

An atom is satisfied when it has….electrons in its outer shell

A

8

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10
Q

When an atom has a full outer shell it is very ____ this is why elements in the 8A column will not bond with any others

A

Stable

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11
Q

In order to have a full outer shell atoms will ___,_____, and ______ there electrons with each other

A

Give, take, and share

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12
Q

When atoms form bonds by giving or taking electrons from each other, this is called a ____ bond

A

Ionic

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13
Q

A good example of an ionic bonded molecule is

A

Table salt (sodium and chloride)

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14
Q

When atoms form bonds by sharing electrons, this is called a ______ bond

A

Covalent

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15
Q

What is a good example of a covalently bonded molecule

A

Water (hydrogen and oxygen)

16
Q

When atoms bond they form a

A

Molecule

17
Q

When elements combine chemically by bonded they form

A

Compound

18
Q

The molecular formula expresses

A

Numbers and types of atoms

19
Q

The structural formula expresses

A

Atoms are located and the arguements of chemical bonds

20
Q

What is involved with a chemical change (A) and physical change (B)

A
  • take a place in defenit proportions
  • new compounds and formed and/or there is a release of elements
  • energy is involved