trends of periodic table

Question 1

nanotechnology

Answer 1

technology to study nano materials

Question 2

why are elements putinto certain groups

Answer 2

every elemnt of every grouphas thesame number of valenceelectrons

Question 3

the number of 9the valence number of each configurationdetermines what group elemnts are from except for group 13-18-whereas, the 2nd digit of the group is the number of valenceeectrons

Question 4

trends of periodic table

Answer 4

1. core charge which measures the attraction between the electron and the nucleus

2.as we go acorss the group
the core chARGE increases
because the attraction force between the valence electrons and the nucleus increases due to an increasing number of valence electrons. whereas when u go down the periods the core charge styas the same remains constant

3. metallic character-metallic characters refers to the ability of the elements to donate electrons
   this decreases as we move across the periodic table from left to right as they become more likely to gain electrons rather than lose them

4.reactivity of metals

Question 5

group18 are gases

Question 6

why is group 18 known as inert gases

Answer 6

because inert is known as non reacitoeve andbc group 18 has a full valence shell it does not react with other atoms.

Question 7

why is group 1-2 areMETALSand not group13-18

Answer 7

group 1-2 donate electrons to reach 18 electrons in their valence shell to create stability whereas group13-18 do not exchnagemetlas instead accepts metals

Question 8

why are group 13-18 NON metals

Answer 8

are elements are able to accept electrons

Question 9

metaloid

Answer 9

elements that havetheproperties of both metals and non metals.

Question 10

core charge

Answer 10

measure of the attractive force between electrons and nucleus

Question 11

core charge is the same as

Answer 11

the number of valence electrons

Question 12

compare core charge between periods and groups

Answer 12

.as we go acorss the group
the core chARGE increases
because the attraction force between the valence electrons and the nucleus increases due to an increasing number of valence electrons. whereas when u go down the periods the core charge styas the same remains constant

Question 13

metallic character

Answer 13

metallic characters chemically refers to the ability of the elements to donate electrons
this decreases as we move across the periodic table from left to right as they become more likely to gain electrons rather than lose them-

Question 14

is group 1 orgroup 2 more metalic, why