تبلیغات
شیمی - عنصر هلیم Helium
یکشنبه 16 بهمن 1390

عنصر هلیم Helium

   نوشته شده توسط: رامتین اسحاق زاده    نوع مطلب :عناصر ،

هلیم (Helium) با علامت مختصر He یک عنصر شیمیایی بدون بو، بدون رنگ و بدون مزه‌است که به صورت گاز است. در جدول عناصر بعد از هیدروژن قرار می‌گیرد و دومین ماده‌ای است که به وفور در کیهان یافت می‌شود. هلیوم در سال ۱۸۶۸ توسط یک اخترشناس فرانسوی کشف شد. هلیوم در مواردی از جمله سرمازایی و پر کردن بالن‌ها استفاده می‌شود.

واژهٔ هلیوم از واژهٔ یونانی "هلیوس" (Helios) گرفته شده که بمعنای خورشید است


برچسب ها: هلیم ،

Can you get an operation to make you taller?
پنجشنبه 16 شهریور 1396 01:35
Quality posts is the important to be a focus for the people to pay a visit the site, that's what this site is providing.
Where are the femur tibia and fibula?
دوشنبه 16 مرداد 1396 11:02
I do agree with all of the ideas you have introduced in your post.
They are really convincing and will certainly work.
Nonetheless, the posts are too brief for starters.
May you please prolong them a bit from next time? Thank you for the post.
http://kyliekociolek.soup.io
شنبه 31 تیر 1396 09:49
If some one wants expert view on the topic of running
a blog after that i recommend him/her to go to see this website,
Keep up the good work.
http://roseanneatleh.hatenablog.com
پنجشنبه 29 تیر 1396 01:17
Its like you read my mind! You seem to know so much about this, like you wrote the book in it or something.

I think that you could do with a few pics to drive the message home
a little bit, but instead of that, this is excellent blog.
A great read. I'll definitely be back.
celestinesearing.weebly.com
چهارشنبه 28 تیر 1396 17:21
Hello to every , for the reason that I am in fact keen of reading this web site's post to be updated daily.

It consists of fastidious material.
https://lavettemcmeans.wordpress.com/
چهارشنبه 28 تیر 1396 10:08
Excellent post. Keep writing such kind of information on your site.
Im really impressed by it.
Hi there, You've done a great job. I will definitely digg it and in my view
recommend to my friends. I'm sure they will
be benefited from this website.
http://shaundaendersbe.blog.fc2.com/
چهارشنبه 28 تیر 1396 08:16
Outstanding story there. What occurred after? Good luck!
http://louis6blake4.jimdo.com/
دوشنبه 26 تیر 1396 03:53
Hi there, You have done a fantastic job. I will definitely digg it and personally suggest to
my friends. I am sure they will be benefited from this web site.
http://shawanalesley.bravesites.com
شنبه 24 تیر 1396 01:35
My spouse and I stumbled over here different web page and thought I may as well check things out.
I like what I see so now i'm following you.
Look forward to exploring your web page again.
Ricardo
دوشنبه 25 اردیبهشت 1396 11:10
Hi, i think that i saw you visited my web site so
i came to go back the desire?.I am trying to in finding things to improve my web
site!I guess its good enough to use some of your ideas!!
manicure
شنبه 19 فروردین 1396 20:53
If some one desires to be updated with hottest technologies after that he must be go to see this website and
be up to date daily.
manicure
جمعه 18 فروردین 1396 20:45
You actually make it seem so easy with your presentation but I
find this matter to be really something that I think I would never understand.

It seems too complex and extremely broad for me.
I'm looking forward for your next post, I will try to get the hang of it!
Mohammad
جمعه 5 آبان 1391 16:53
خوب ولی کم
شنبه 15 مهر 1391 15:33
خیلی کم بود
 
لبخندناراحتچشمک
نیشخندبغلسوال
قلبخجالتزبان
ماچتعجبعصبانی
عینکشیطانگریه
خندهقهقههخداحافظ
سبزقهرهورا
دستگلتفکر