Which period of the periodic table has 32 elements? What is the first element in the periodic table? How many elements are there in the periodic table? How many elements are there on the periodic table? What element is in period 4 and group 14 (4A) in the periodic table?
What element is in period 4 and group 14 (4A) in the periodic table? What element is in period 5 and group 16 (6A) in the periodic table? Which of the elements in the following periodic table are halogens? What are the elements that make up...
Which group of the periodic table is known as the halogens? List them. To what category of elements does an element belong if it is a poor conductor of electricity? A. transition elements B. metalloids C. nonmetals D. metals What type of element is silver? In other words, what is it...
A negatively charged ion. Chloride ions are abundant in seawater, contributing to its salinity. 15 Chlorine Atom A neutral halogen element. A chlorine atom gains an electron during the formation of table salt. 13 Chloride Ion Involved in gastric acid. Chloride ions are a component of hydrochloric...
tungstenis a metal element with the element symbol W. It has high hardness, high melting point, and is not corroded by air at room temperature; it is mainly used to manufacture filaments, high-speed cutting alloy steels, super-hard molds, and also used in optical instruments and chemical in...
What is the charge on the Co ions in Co2O3? A main group element with the valence electron configuration 3s23p4 is in which periodic group? It forms a monatomic ion with what charge? A main group element with the valence electron configuration 5s1 is in which periodic group? It forms ...
A silver-gray and brittle crystalline solid are the stable forms. It gets tarnished rapidly when comes in contact with air and at high temperatures by preparing a white cloud of arsenic trioxide. The metallic form of the element is brittle and it gets tarnished when oxidized to arsenic ...
What is the symbol for the element that is in group VIIIA(18)and period6? What is the symbol for the element that is in groupIB(11)and period4? What is the symbol for the element that is in group IIA(2)and period5?
NCERT solutions for CBSE and other state boards is a key requirement for students. Doubtnut helps with homework, doubts and solutions to all the questions. It has helped students get under AIR 100 in NEET & IIT JEE. Get PDF and video solutions of IIT-JEE Mains & Advanced previous year pap...
The Halogens (Group 7) Fluorine, Chlorine, Bromine, Iodine, Astatine. Have 7 valence electrons (very reactive), they need 1 more to have a full valence! The Noble Gases (Group 8) Very stable and “unreactive” (inert). All have 8 valence e- except for Helium. Why is Helium still ...