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Science - Year 10 > Periodic table > Flashcards

Periodic table Flashcards

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1
Q

Define electronegativity ? (EN)

A

An atoms ability to attract electrons

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2
Q

Characteristics of ionic compound

A
  • Hard
  • Bittle
  • High melting point
  • Cant conduct electricity in solid state
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3
Q

The name for outer (bonding) electrons in atoms ?

A

Valence e-

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4
Q

When can ionic compounds conduct electricity ?

A

Can conduct in liquid / aqueous state

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5
Q

What is an ion ???

A

When an atom loses or gains electron it becomes an ion

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6
Q

What microscope can allow humans see atoms

A

Scanning tunnelling microscope

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7
Q

Maximum number of electrons hold in each shell formula

A

2n * (*= 2)

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8
Q

Electrons are most attracted to the nucleus

A

When they are close to the nucleus

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9
Q

Fireworks

A

Heat

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10
Q

How many different element is their

And how many are not found naturally on earth

A

118

26

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11
Q

How is the atomic number found

A

= no. of protons

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12
Q

The heaviest natural element

A

Is uranium

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13
Q

What is the ionic formula for sodium oxide

A

Na,O

, =2

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14
Q

Monatomic

Are noble gases monatomic ?

A

Atoms that exist on their own without bonding with other

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15
Q

Why is noble gases so stable

A

Because of their electron configuration

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16
Q

Bonds are form when ?

Atoms reaction , Gain and lose so this results in getting 8 election why do this

A

So it has the same configuration and stability as noble gases

The transfer or sharing of electrons

17
Q

Metallic bonding occurs between

Factors -

A

Metal atoms

Weak bond with valence electrons
Sea of loose e- surrounded by positive ions
Malleable , ductile , conductor of heat and electricity

18
Q

Ionic bonding occurs between

Factors -

A

Metals and non-metals

Involves a cation attracting an anion

19
Q

Covalent bonding occurs between

Factors

A

Non-metals

20
Q

Atoms are

A

Neutral

21
Q

Positively charges ions

A

Cations

They are form when metals lose electrons

22
Q

Negatively charged ions

A

Anions

They are formed when non-metals gain electrons

23
Q

Example of Au , Zn , Pb

A

Metallic bonding

24
Q

NaCl CaC03 KOH

A

Ionic binding

25
Q

CO2 H2O NH3

A

Covalent bonding

26
Q

What is the ionic formula for sodium oxide

A

Na,O

, =2

27
Q

Monatomic

Are noble gases monatomic ?

A

Atoms that exist on their own without bonding with other

28
Q

Why is noble gases so stable

A

Because of their electron configuration

29
Q

Bonds are form when ?

Atoms reaction , Gain and lose so this results in getting 8 election why do this

A

So it has the same configuration and stability as noble gases

The transfer or sharing of electrons

30
Q

Metallic bonding occurs between

Factors -

A

Metal atoms

Weak bond with valence electrons
Sea of loose e- surrounded by positive ions
Malleable , ductile , conductor of heat and electricity

31
Q

Ionic bonding occurs between

Factors -

A

Metals and non-metals

Involves a cation attracting an anion

32
Q

Covalent bonding occurs between

Factors

A

Non-metals

33
Q

Atoms are

A

Neutral

34
Q

Positively charges ions

A

Cations

They are form when metals lose electrons

35
Q

Negatively charged ions

A

Anions

They are formed when non-metals gain electrons

36
Q

Example of Au , Zn , Pb

A

Metallic bonding

37
Q

NaCl CaC03 KOH

A

Ionic binding

38
Q

CO2 H2O NH3

A

Covalent bonding

39
Q

Protons + neutrons =

A

Mass number

Science - Year 10 (3 decks)

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