Anikate
  • Anikate
Please help: http://prntscr.com/7hgmps
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
Use process of elimination. Do you have any ideas?
Anikate
  • Anikate
nope @mastermindkakashi
Anikate
  • Anikate
what do isotopes have to do with protons??

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More answers

anonymous
  • anonymous
isotopes of an element are the same but weigh differently according to the number of neutrons. since thallium-205 weighs more than thallium-203 (since 205>203) there cannot be fewer protons, that would lead to a completely different element (since atomic number is the number of protons)
Anikate
  • Anikate
hmm ok..... so its D
Anikate
  • Anikate
the fourth option
Anikate
  • Anikate
can u plz help me with this, idk how I got it wrong: http://prntscr.com/7hgpba
anonymous
  • anonymous
the atomic mass unit is an average of the thallium isotope number and how abundant it is in nature. Since the amu is closer to 205 than 203, you can infer that there is more thallium-205. The number has nothing to do with weight.
anonymous
  • anonymous
the answer to number 6 is the second option because thallium always has an atomic number of 81 and the atomic number is equal to the number of protons, which is why you got number 9 wrong.
anonymous
  • anonymous
The atomic number of an element never changes because it represents the number pf protons. If you change the number of protons, you have a completely different element. As previously stated.
Anikate
  • Anikate
do protons always stay the same? @mastermindkakashi
Anikate
  • Anikate
@Ehsan18
anonymous
  • anonymous
yes always the same
Ehsan18
  • Ehsan18
its B
Ehsan18
  • Ehsan18
@mastermindkakashi is right!
Anikate
  • Anikate
can u please help me with studying for a final? i have a lot of questions @Ehsan18
Anikate
  • Anikate
@mastermindkakashi
anonymous
  • anonymous
I can try my best
Anikate
  • Anikate
sweet! thanks!
Ehsan18
  • Ehsan18
Me to will try my best but having my exams too!!
Anikate
  • Anikate
plz help me with both quesionts on this, i dont understand it http://prntscr.com/7hh7nw
Anikate
  • Anikate
guys?
Anikate
  • Anikate
@Ehsan18 do u know this?
anonymous
  • anonymous
okay so on the periodic table, the higher up you go and the farther to the right is the most electronegative
anonymous
  • anonymous
I have to go, so just tag me with your questions and I can get back to you later. Sorry
Anikate
  • Anikate
ok, and how about 13? @Ehsan18 @mastermindkakashi
Anikate
  • Anikate
@Ehsan18
Anikate
  • Anikate
@rosiejd are you good with ionic compunds? do u know the basics?
anonymous
  • anonymous
no, sorry,havent taken the subject in years and i forgot.
Anikate
  • Anikate
ok
Anikate
  • Anikate
http://prntscr.com/7hhft0 @Lokid
Anikate
  • Anikate
plz help
anonymous
  • anonymous
oh woah that one is new doe, what is the lewis structures
Anikate
  • Anikate
https://dr282zn36sxxg.cloudfront.net/datastreams/f-d%3A3d4059a9ff59983ace0a329d34ef6d3ffb36a17fe950586fcb8f3db0%2BIMAGE%2BIMAGE.1 lewis dot structures just show the sharing of valence electrons @Lokid
anonymous
  • anonymous
okay ya sorry i wish i could help but that looks way more advanced than what i did DX so so sorry wish i could help
Anikate
  • Anikate
np thanks doe @Lokid
anonymous
  • anonymous
=D

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