Question

Suppose a laboratory wants to identify an unknown pure substance. The valence electrons of the substance's atoms feel an effective nuclear charge of +4. If the unknown substance has a higher electronegativity value than silicon (Si), what other characteristics would you expect the substance to exhibit?

Answer 1

It would have larger atomic radii than Si and lower ionization energies than Si.

It would have smaller atomic radii than Si and higher ionization energies than Si.

It would have smaller atomic radii than Si and lower ionization energies than Si.

It would have larger atomic radii than Si and higher ionization energies than Si.

Answer 2

@iPwnBunnies can u help plz

Answer 3

@Somy

Answer 4

@dan815 @d@doulikepiecauseidont @deshawn1 @sammixboo @Skyz @Schleifspur @scapeplan @kittycat123 @katieheidtke @Ail.A @avalena @adrynicoleb

Answer 5

i am thinking the last option??

Answer 6

alright 1 tip for you to remember
Ionization energy trend and electronegativity trend ARE SAME
meaning both increase as we go across the period and both decrease as we go down the group

Answer 7

higher electronegativity value than that of silicon
that means either the element has to be above silicon OR after silicon in the period

Answer 8

charge +4
i'd expect it to be group 4
thus the element would be ABOVE Si
so its Carbon

Answer 9

now which property fits carbon? or forget about carbon
lets say we don't know what element that is
we know that its in group 4 and we know that its more electronegative than Si

Answer 10

yes..

Answer 11

so atomic radii increases as there are more shells

Answer 12

so if we know that element is MORE electronegative than Si - we will know that its ABOVE Si right?

Answer 13

if its above Si doesn't that mean it has less shells?

Answer 14

yes

Answer 15

so what will be its atomic radii? if we said that atomic radii increases as there are more shells

Answer 16

will it be bigger or smaller than Si?

Answer 17

bigger

Answer 18

wrong

Answer 19

hmmm want me to start it all over?

Answer 20

no smaller!

Answer 21

when an electron is added to the more electronegative elements (O, F, and i believe Cl too)? if so, then neon has to be the correct choice. o-o

Answer 22

are you sure you get it why its smaller? @superhelp101

Answer 23

atomic radii increases as there are more shells

Answer 24

good job :)

Answer 25

okay what about ionization energy then?
i told you earlier that ionization energy and electronegativity have same trend
so what will it be?
more or less then Si?

Answer 26

increase as we go across the period and both decrease as we go down the group

Answer 27

so what is going to be the answer?
is it gonna be more or less than that of Si?

Answer 28

more?

Answer 29

bingo :)

Answer 30

the second option

Answer 31

yupp

Answer 32

yass! thank you for all your helpppp

Answer 33

you are most welcome :)))