In what period and group will an element with Z = 118 will be present?

एक पंक्ति में उत्तर

The element with atomic number Z = 118 is present in the 7^th period and 18^th group.

shaalaa.com

क्या इस प्रश्न या उत्तर में कोई त्रुटि है?

अध्याय 3: Periodic Classification Of Elements - Evaluation [पृष्ठ ९६]

अध्याय 3 Periodic Classification Of Elements
Evaluation | Q II. 10. | पृष्ठ ९६

Which of the following elements will have the highest electronegativity?

Various successive ionisation enthalpies (in kJ mol^-1) of an element are given below.

IE₁	IE₂	IE₃	IE₄	IE₅
577.5	1,810	2,750	11,580	14,820

The element is

Which one of the following is the least electronegative element?

Assertion: Helium has the highest value of ionisation energy among all the elements known

Reason: Helium has the highest value of electron affinity among all the elements known

IE₁ and IE₂ of Mg are 179 and 348 kcal mol⁻¹ respectively. The energy required for the reaction \[\ce{Mg -> Mg^2+ + 2e^-}\] is

Is the definition given below for ionisation enthalpy is correct?

"Ionisation enthalpy is defined as the energy required to remove the most loosely bound electron from the valence shell of an atom"

By using Pauling's method calculate the ionic radii of K⁺ and Cl⁻ ions in the potassium chloride crystal. Given that `"d"_("K"^+) - "Cl"^-` = 3.14 Å

Explain the following, give an appropriate reason.

The electron affinity values of Be and Mg are almost zero and those of N (0.02 eV) and P (0.80 eV) are very low.

What is the screening effect?

State the trends in the variation of electronegativity in groups and periods.