CHEMICAL BONDING Flashcards

1
Q

____________ is the attractive force that holds two atoms together in a complex unit.

A

Chemical bond

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2
Q

The nature of chemical reaction is closely linked to _________________

A

eletron configuration

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3
Q

____________________ occur whenever atoms combine with or dissociate from other atoms

A

Chemical reaction

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4
Q

There are ___ energy levels or electron shells in all.

A

7

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5
Q

the further the _____ is from the nucleus, the higher its ________________.

A

shell, energy level

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6
Q

the closer the _____ is from the nucleus, the lower its ________________.

A

shell, energy level

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7
Q

_______ energy shells can hold more electrons than ________ energy levels.

A

Higher, lower

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8
Q

Maximum number of electrons per shell formula

A

2(n)^2

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9
Q

The outer shell refers to the outer most shell holding electrons. It is also referred to as the ____________.

A

valence shell

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10
Q

Electrons in the outer shell are called ________________.

A

valence electrons

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11
Q

Outermost energy level is complete

A

Chemically inert

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12
Q

Outermost energy level is incomplete

A

Chemically reactive

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13
Q

Types of Chemical Bond

A

Ionic and Covalent Bond

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14
Q

chemical bond formed through the transfer of electrons

A

ionic bonds

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15
Q

compound in which ionic bonds are present

A

ionic compound

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16
Q

Ionic compounds tend to have _______ melting point and are good _______ of electricity when in a molten state.

A

high, conductors

17
Q

chemical bond formed through the sharing of electrons

A

covalent bond

18
Q

compound in which covalent bonds are present

A

molecular compound

19
Q

____________ have lower melting points and can be gas, liquid, and solid.

A

Molecular compounds

20
Q

Covalent bonding generally happens between _____.

A

nonmetals

21
Q

An ionic bond is formed between a _______ and a __________________.

A

metal, non-metal

22
Q

Non-metals(-ve ion) are “stronger” than the metal(+ve ion) and can get electrons very easily from the ______.

A

metal

23
Q

A _________ symbol is the chemical symbol of an element surrounded by dots equal in number to the number of valence electrons present in atoms of the element.

A

Lewis

24
Q

named in honor of the American chemist ________________, who first introduced them.

A

Gilbert Newton

25
Q

also frequently called electron dot structures.

A

LEWIS STRUCTURE

26
Q

The _____________ refers to an important principle that the atoms which have bonded share eight outer electrons.

A

octet rule

27
Q

The octet rule states that the atoms like to have ________
electrons only in their full outer shells.

A

eight

28
Q
  • Special type of bond
  • extremely weak bonds
  • formed when an H atom bound to N, O, F
A

HYDROGEN BOND

29
Q

___________ a result of an unequal sharing of the electrons in a bond.

A

Polar Covalent Bond

30
Q

____________ is a bond in which the electron pair is shared equally.

A

Non-Polar Covalent Bond

31
Q

If two atoms have an electronegativity difference of 0.4 or less, they form a ____________ bond.

A

non-polar covalent

32
Q

If two atoms have an electronegativity difference between 0.5 and 1.7, they form a ______________ bond.

A

polar covalent

33
Q
  1. If two atoms have an electronegativity difference of more than 1.8, they form an __________.
A

ionic bond