Describe the changes in properties of the elements as you move from left to right across the periodic table?

[francisco]

some of the variation in properties are:
1. atomic size decreases.
2. ionization enthalpy increases.
3. electronegativity increases.
4. electron gain enthalpy becomes more negative.
5. valancy first increases and then decreases. n many more......

[rheged]

some of the variation in properties are:
1. atomic size decreases.
2. ionization enthalpy increases.
3. electronegativity increases.
4. electron gain enthalpy becomes more negative.
5. valancy first increases and then decreases. n many more......

[stein74]

1. atomic size decreases.
2. ionization enthalpy increases.
3. electronegativity increases.
4. electron gain enthalpy becomes more negative.
5. valancy first increases and then decreases. n many more......