Scelta multipla
Who is credited with creating the first widely recognized periodic table of elements?
121
views
2. Atoms & Elements
Periodic Table: Classifications
Scelta multipla
Which of the following groups of elements typically exhibit luster (are shiny)?
A
Nonmetals
B
Noble gases
C
Metals
D
Halogens
Guida verificata passo dopo passo1
Understand that luster, or shininess, is a physical property commonly associated with the way a material reflects light from its surface.
Recall that metals have a characteristic metallic luster due to the presence of free electrons that can reflect light efficiently.
Recognize that nonmetals generally do not exhibit luster; they tend to be dull or transparent rather than shiny.
Note that noble gases are gases at room temperature and do not have a solid surface to exhibit luster.
Identify halogens as nonmetals that typically do not have metallic luster; they are often colored and can be reactive but not shiny like metals.
Video correlati
Pratica correlata
