How is a group defined on the periodic table?
Group, in chemistry, a column in the periodic table of the chemical elements. In a group, the chemical elements have atoms with identical valence electron counts and identical valence vacancy counts. Groups are numbered from 1 to 18.
What is group 3 12 on the periodic table?
The 38 elements in groups 3 through 12 of the periodic table are called “transition metals.” As with all metals, the transition elements are both ductile and malleable, and conduct electricity and heat. Their valence electrons are present in more than one shell.
What is Group 17 on the periodic table called?
Halogen
Halogen, any of the six nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic table. The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).
What are the 4 main groups on the periodic table?
Definitions of groups, periods, alkali metals, alkaline earth metals, halogens, and noble gases.
What is group 8 on the periodic table called?
noble gases
Group 8A (or VIIIA) of the periodic table are the noble gases or inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The name comes from the fact that these elements are virtually unreactive towards other elements or compounds.
What is Group 4 called?
Group 4 is the second group of transition metals in the periodic table. It contains the four elements titanium (Ti), zirconium (Zr), hafnium (Hf), and rutherfordium (Rf). The group is also called the titanium group or titanium family after its lightest member. All the group 4 elements are hard, refractory metals.
What is Group 18 called?
Noble gas, any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. The elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og).
What is the main group in periodic table?
In chemistry and atomic physics, the main group is the group of elements (sometimes called the representative elements) whose lightest members are represented by helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, and fluorine as arranged in the periodic table of the elements.
What does facilitating mean in a group meeting?
To put it another way, facilitating actually means: Understanding the goals of the meeting and the organization. Keeping the group on the agenda and moving forward. Involving everyone in the meeting, including drawing out the quiet participants and controlling the domineering ones.
What are the ground rules of group facilitation?
Common ground rules are: One person speaks at a time. Raise your hand if you have something to say. Listen to what other people are saying. No mocking or attacking other people’s ideas. Be on time coming back from breaks (if it’s a long meeting) Respect each other.
How to choose a facilitator for a discussion?
Decide who should facilitate the discussion. Consider who knows the topic, can assume an “objective” role, will be accepted by the group and has group experience. Consider what you know about the topic, whether your views are known to students, and whether that makes your role as a facilitator too difficult.
What is the definition of an effective group discussion?
Chapter 16 Sections. What is an effective group discussion? ___An effective group discussion is one in which the group is able to accomplish its purpose or to establish a basis either for ongoing discussion or for further contact and collaboration among its members.
