Lys & Arg have four ionisations zones

1. 1--------pK1 – charge +2

2. pK1---------pK2 charge +1

3. pK2---------pKr charge 0

4. pKr---------14 charge -1

TLS Online TPP Program

#Id: 3778

#Section 2: General Biology

the atomic radii of chemical elements are a complicated task as the size of an atom is of the order of 1.2×10^-10m.

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#Id: 3777

#Section 2: General Biology

The diameter of the nucleus is in the range of 1.75 fm (1.75 × 10⁻¹⁵m) for hydrogen.

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#Id: 3776

#Section 2: General Biology

Elements are made of atoms. While the atoms may have different weights and organization, they are all built in the same way.

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#Id: 3775

#Section 2: General Biology

The electrons revolve in orbits around the nucleus.

TLS Online TPP Program

#Id: 3774

#Section 2: General Biology

Proton & neutron are found in the center of the atom, a place called the nucleus.

TLS Online TPP Program

#Id: 3773

#Section 2: General Biology

An atom has three parts: Proton carries positive charge, Electron carries negative charge, While Neutron carries no charge.