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Flashcards in Test 1 Deck (21)
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1

If two atoms have the same atomic number but different mass number, they are called what?

Isotopes

2

The atomic number tells you what?

The number of protons in an atom, so therefore it also tells the number of electrons.

3

The mass number tells you what about an atom?

The number of protons plus the number of neutrons in the atoms nucleus.

4

According to the Aufbau principle, in what order do you fill up orbitals?

Low energy to high energy
1s 2s 2p 3s 3p 4s 3d

5

Hybridization: single bonds only =

sp^3 hybridization

6

Hybridization: one double bond =

sp^2 hybridization

7

Hybridization: two double bonds =

sp hybridization

8

Hybridization: one triple bond =

sp hybridization

9

An sp^3 hybridized carbon has _____.

4 bonds

10

An sp^2 hybridized carbon has _____.

3 bonds

11

An sp hybridized carbon has _____.

2 bonds

12

CH4

Methane

13

C2H6

Ethane

14

Electronegativity (EN) of Carbon

2.5

15

_________ bonds are atoms with similar EN. <2>

Nonpolar Covalent

16

_______ bonds have a difference in EN < 2

Polar covalent bonds

17

_______ bonds have a difference in EN > 2

Ionic

18

sp2 orbitals are in a plane with ___ degree angles.

120
Trigonal planer

19

sp orbitals are ____ and are ___ degrees apart on the x-axis.

Linear, 180

20

Transition metal compounds

Lewis acids

21

4 bonds = orbital?? = degrees?? = shape??

sp3, 109.5, tetrahedral