Question

Element
Matching
Element Matching Group
or Period? Shared
Characteristics
Calcium (Ca)

Flourine (F)
Iodine (I)
Argon (Ar)

Answer 1

Group
- Elements in the same group have similar chemical properties and react similarly with other elements.
- Calcium, Fluorine, and Iodine are all in Group 17 (Group VIIA) of the periodic table, known as the halogens, and share characteristics such as being highly reactive nonmetals.
- Argon is in Group 18 (Group VIIIA) of the periodic table, known as the noble gases, and shares characteristics such as being inert and nonreactive.