Question

Which one of the following statement is not correct about the trends in the properties of the elements of a group on going down in a group

Answer 1

Answer:

Down the group

1. the electronegativity decreases doen the group
2. the size of the atoms increases
3. electron affinity/electrongain enthalpy decreases
4. metalic charecter increases
5. nonmetalic charecter increases

• The periodic table can predict the properties of new elements, because it organizes the elements according to their atomic numbers.

• Physical properties are used to observe and describe matter.

• Appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity and many others are the physical properties of the element.

• Reactivity with other chemicals,  toxicity, coordination number, flammability, enthalpy of formation, heat of combustion, oxidation states,  chemical stability and etc. are the chemical properities.

• The elements are arranged based on atomic numbers and electron configurations

1.The properties of an element depends in the periodic table depends on its

A. Atomic size

B. Atomic mass

C. Electronic configuration

D. No of proton

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