This is Methanethiol (CH3SH, Methyl Mercaptan), I created them in January 15th yet haven't posted about them yet until today. They are nonbinary and use they/them pronouns, as you can see, they wear a little scarf thing with the enby flag on it. They also have an egg on their head, as a reference as to how methanethiol is related to eggs. Also, their tail is based off a skunk tail. They don't like Methane (by Lily Irie) at all, since Methane tends to make fart jokes, and by logic, this affects them, and they just want friends, but they aren't too good at making friends, as not many people like them. They are also lightweight and fluffy, their best friend is Prymnesin-1 (I will post about them later). Their top scars are also somewhat triangular and they are the same color as their tail and ear stripes. They have a light brown patch around their left eye. When they get along with people, they are quite silly, like Bismuth-215. Also, they don't like cussing. Last thing, their ears are significantly lower than most cattos, which makes them look kinda goofy.
Another person made a Copper (II) Sulfate catto, so this is mine. This is Copper (II) Sulfate, he is a demiboy and he uses he/they pronouns. He is also aromantic and bisexual, he really likes physics and calculus, his best friends are Methanethiol and Prymnesin-1. Like Radon-219, he listens to Vocaloid, his favorite Vocaloid is Kaai Yuki. He watches 3Blue1Brown and blackpenredpen, also The Organic Chemistry Tutor. He has a shit ton of screentime, one time he got 12 hours, but they are trying to get rid of that habit. They are also transgender and transsexual. They like the song "Baby Got Back" by Sir-Mix-a-Lot and are interested in scientific pop culture. They have autism and ADHD, they also have a somewhat high libido. They are well-known around the internet, they also like NileRed. They aren't too fond of memes like 67 and Tung Tung Tung Sahur, but they somewhat sympathize with Gen Alpha, since back in their days, they memed about Nyan Cat and Dank Memes, they don't like the Great Meme reset because they believe it is illogical. They are somewhat verbose. They are loosely based on myself, but they are not me.
Vector and Eigenvector! (Element Cattos, more specifically, Math Cattos)
So uh, I have this catto named Integral Symbol, right? Well, I wanna show y'all my other math cattos!
Lots of text here, so it's under this. Yay!
Vector
Image goes here, I don't have an image of vi yet.
Ve uses ve/it/they pronouns and its gender is "vector", without the quotes, not to be confused with the unrelated gender named "vectorgender", vir first pronoun set, "ve/vi" is also based on themself. Vir collar is a cartesian plane, since vectors are also located in it, also they have an arrow on top of its head, another nod to how vectors are sometimes represented with arrows. It believes that going around with a scooter makes them look "swag", also ve likes going around on their scooter really fast for fun. They love skateboards and scooters, due to them being used often in physics textbooks to demonstrate motion with vectors, however, sometimes ve's not careful and crash into people.
Eigenvector
Image goes here, I don't have an image of gen yet.
Ei uses ei/gen/vec/tors pronouns. Due to the nature of vec gender, vec gender deserves its own section here due to its length.
Vec distinct hairstyle is due to it resembling the notation of an eigenvector. Image below is from 3Blue1Brown.
Eigenvector's gender.
Vec gender is quite complex, but it's primarily described by "eigenvectorgender", which is a xenogender where one's gender is like an arrow that points in a direction and thus contains its own gender alignment, but isn't aligned to an existing gender, thus independent like an actual eigenvector. By logic, due to gen being an eigenvector, vec gender is also a nominalgender due to being unique to gen, but is also an auingender due to being autonomous in nature, and an eigengender due to not being influenced by anything. To put it short, vec gender is based on genself, *is* genself, isn't influenced by anything and is thus a literal eigenvector, too. In vec own words, "My gender is me, and only me". On the wiki, list vec gender as simply "eigenvector", without the quotes, instead of "eigenvectorgender" since, as ei said, "my gender is me". Vec pronouns are also clearly based on genself.
Personality and other things.
Ei have an extremely high self-esteem, however, ei're not selfish, ei're actually quite friendly, ei can act very blunt when bothered, though.
Vector and Eigenvector's kinship.
They are siblings due to being vectors, they also get along really well with eachother.
Ei like to joke about how apparently Vector's scooter is "derivable", a play on how acceleration is a derivative, and thus, to find the acceleration of a scooter, you have to derive it, ve are comfortable with these jokes and even find them funny. Eigenvector also likes to spin Vector's scooter when they're using it, solely for fun, Vector isn't bothered by this. They both love Undertale and Deltarune, they also love watching 3Blue1Brown due to the linear algebra series that he (Grant Sanderson) created for it, they are also cyan due to the fact that some of the pi creatures from that channel are cyan.
This is now the longest "article" I've written for a catto I've made, thus making CuSO4 the runner-up. I can't believe it. Long text incoming.
Lead-215 (215Pb) is a radioisotope of Lead, he is male and goes by he/him pronouns due to the isotope rule. He has a half-life of 36 seconds, however, I can't find his density anywhere.
Due to having an extremely similar mass to Bismuth-215 and decaying into em via beta-minus decay, he also shares lots of similarities with em, he also wears glasses and are best friends with em, he even sees em as his older sibling, much like the relationship between Technetium and Rhenium.
Just like 215Bi, he is also a little verbose, but in this case it's not because he admires Iridium, but because he tends to write math papers and the vocabulary used in them decided to get stuck in his head, thus changing his daily vocabulary, which people tend to call him out for, however, his verbosity is not absolutely incomprehensible, so don't worry. He is quite charismatic, he's a good guy to have around, he's not really annoying and is often perceived as adorable by people around him (unlike, *ahem*, Arsenic...).
Much like his siblings (the other Lead isotopes), he has a catchphrase that he says, often when shocked, in this case it's "Ahem". Ironically, he is also dehydrated, since his catchphrase is basically clearing your throat.
He is quite interested in set theory and calculus, much like how 215Bi likes mathematics and has a Mandelbrot set bowtie. Speaking of bowties, he also wears a bowtie, but it's a typical Venn diagram formed by two circles. He loves fractals, calculus and other similar topics due to these things having relations with infinities, and according to both himself and em, being "wack", which is also the reason as to why I love those kinds of things, they're just wacky. He is slightly chubby due to being a notably heavy Lead isotope (the heaviest Lead isotope discovered is 220Pb, by the way).
He is also asexual, however, his romantic orientation is unlabeled and thus goes by the pomoromantic unlabel. He is part of a love triangle formed by himself, Integral Symbol and Copper(II) Sulfate (my CuSO4). He likes Integral Symbol due to his personality.
His earrings are lowercase omega symbols since lowercase omega in calculus typically represents infinities, much like how lowercase epsilon represents infinitesimals.
Online, he likes to use the kaomoji "·ω·", due to the omega present in it and also looking a bit like the ":3".
There are one too many Lead isotopes and it's freaking me out (Element Cattos)
So uh, I'm making an article on the Element Cattos wiki for an isotope catto I just made and then I found out that Lead has one too many isotopes... WHAT THE FUCK DO YOU MEAN BY LEAD-220????
this bullshit isn't even listed on the periodic table made by theodore gray, the dude who turnt the periodic table into a physical table btw
from 178 to 220 is absolutely wack, also a shit ton of these isotopes are radioactive which means lead herself has a shit ton of brothers and if all of these isotopes were to be turnt into cattos and were to have articles, then that means lead would hold the element cattos record for most brothers with articles ever
So uh, as it turns out, Radon-219 wasn't following the isotope rule, where all isotopes that are stable are the same gender as the most abundant isotope, and if all isotopes of an element are radioactive, including the main one, they are all the same gender. To avoid the misinterpretation of Radon-219 being forcefully detransitioned, here's what happened:
Radon-219 was just really confused about her gender. To clarify, Radon-219 now uses she/her pronouns and is female, however, she will retain the top scars and does not regret getting top surgery, she got it due to having back pain.
