Today ESL

Xem Video Online

  Home - Forum - Vocabularies - Exercises - English Games - Collection - Verbs - SearchMy Account - Contact

Trang nhà - Diễn đàn - Từ vựng - Bài tập - Trò chơi - Sưu tầm - Động Từ - Tìm- Thành viên - Liên hệ


Please fill your answer.
Điền vào ô trống


Giải thích : (n.) A poisonous nonmetallic element of the nitrogen group, obtained as a white, or yellowish, translucent waxy substance, having a characteristic disagreeable smell. It is very active chemically, must be preserved under water, and unites with oxygen even at ordinary temperatures, giving a faint glow, -- whence its name. It always occurs compined, usually in phosphates, as in the mineral apatite, in bones, etc. It is used in the composition on the tips of friction matches, and for many other purposes. The molecule contains four atoms. Symbol P. Atomic weight 31.0.
10 chars



First Letter

Last Letter

Next game.




Next game

Chọn game mới

Learn Vocabularies - Học từ vựng



 

Liên kết - Giúp đỡĐiều lệ - Liên hệ

Links - FAQ - Term of Use - Privacy Policy - Contact

tieng anh - hoc tieng anh - ngoai ngu - bai tap tieng anh - van pham - luyen thi toefl

Copyright 2013 EnglishRainbow.com , TodayESL.com & Sinhngu.com All rights reserved.