Question

Chemistry Impoentant Questions
State Modern Periodic daw.
2 Which of the following species will have the smallest
Size?
49. Mg2+, Al, A.837
3 Oxygen has lowes ionization enthalpy than that ol
Nitrogen. Justify
4. Give mecson: The cadius of the atom is always
greater than the neutral atom
5 Wosite the IUPAC name of an element with atomcne 102
6. Annange the following species in the increasing andel of
tonic radi
Mg21, No, A230E​

Answer 1

Answer:

there are hindered and 18 elements.

there are four blocks

1.s block

2.d block

3.p block.

4.f block

the horizontal columns called groups.

the vertical rows are called periods.

s block stands for spherical.

p block stands for perpendicular.

d block stands for inner transition elements .

f block stands for lantheninde and avteninde series.