In what group of the periodic table would you find an element with two valence electrons in an s subshell and three valence electrons in a p subshell? a.) IA b.) IIA c.) IIIA d.) IVA e.) VA Oxygen is in which group in the periodic table? Oxygen is in which group of periodic ...
Nitrogen Uses and Properties - Nitrogen is a diatomic gas with atomic number 7 and symbol N. Know the nitrogen atomic number, the atomic mass of nitrogen and atomic weight of nitrogen. Explore the Uses of Nitrogen.
百科挑战题1) What is the letter forprop in the periodic table of chemical elements(化学素周期)? A.Fe B.Zn C.Ha2) What is the best way to look up information on the interne? A. By using e-mail B. By using QQ B33) What is the material of pengl leag()? A.lime B. graphite(...
What is a hydrogen fuel cell? What is the charge on an electron in zeets? What is hydrogen on the periodic table? What is the overall charge of an atom? What is the charge of a molecule having 14 electrons and 12 protons? What is metallic hydrogen?
“Things will always achieve balance, and in this casethat's a mix of common, stable compounds.50. According to the article, we can learn that if we put all the elements on the periodic table intoone container, we shouldA. get a new super elementB. create something uniqueC. give life...
What is Bromine? Discussion Comments Byanon291025— On Sep 12, 2012 So how does nitrogen typically move within its Earth system? Byanon259821— On Apr 08, 2012 I need to know what is the importance of nitrogen to the air. Byanon258306— On Mar 31, 2012 ...
oxygen is healthful to people. Byanon69428— On Mar 08, 2010 where do gases come from? Byanon69427— On Mar 08, 2010 carbon dioxide is a greenhouse gas. hydrogen with small amount of helium is in the sun. the sun is a star (closest star to Earth). ...
What is the Periodic Table of The Elements?"It is a huge, efficient resource!"The periodic table is the most important chemistry reference there is. It arranges all the known elements in an informative array. Elements are arranged left to right and top to bottom in order of increasing atomic...
This is hydrogen and oxygen put together, also known as w___! Learning about these things helps us better understand the world we live in.But have you ever noticed something missing in the periodic table? There were already 114 elements. But the seventh row of the table was not f___,...
In the periodic table, a chemical element is represented by a fixed format : Atomic number= Total number of protons Atomic symbol= One or two letters from the symbol’s name The periodic table can be classified in three groups: 1. Metals ...