Chemical basis of life
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CHEMICAL BASIS OF LIFE. CHAPTER 2. Bohr’s Atom. electrons in orbits. nucleus. Nitrogen (N). 7. N. 14. 7 e-. Electron valence: 6. C. O. Valence: 2 (8- 6 = 2) Unpaired e - = 2. Electron valence: 5. O. N. Valence: 3 ( 8- 5 =3) Unpaired e - = 3. Electron valence : 4. N.

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CHAPTER 2

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Chemical basis of life

CHEMICAL BASIS OF LIFE

CHAPTER 2


Chapter 2

Bohr’s Atom

electrons in orbits

nucleus


Chapter 2

Nitrogen (N)

7

N

14

7 e-


Chapter 2

Electron valence: 6

C

O

Valence: 2 (8-6 = 2)

Unpaired e- = 2

Electron valence: 5

O

N

Valence: 3 ( 8-5 =3)

Unpaired e- = 3

Electron valence: 4

N

C

Valence: 4 (8- 4 = 4)

Unpaired e- = 4


Chapter 2

ISOTOPES OF HYDROGEN

Protium Deuterium Tritium

Prt

Ntr

Prt

Ntr

Ntr

Prt

H

Ntr

Prt

Prt

H => He + 0e-1

1

2

3

3


Chapter 2

H

H


Chapter 2

HYDROGEN BONDS

+

+

+

+

H

-

-

-

O

+

H

+

+

+

-


Chapter 2

pH= -Log [H+]

[ H+] = Concentration of Hydrogen ions


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