Over the past few years, researchers have tried various methods to control the fungus associated with white-nose syndrome. They installed heaters in caves in
the United States because the fungus grows at cool temperatures, and they have
even sprayed the caves with fungicides.
Is either one of these solutions sustainable? Hint: Consider the environmental
impact.
Explain your answer.

1.solid

2.carbon dioxide

3.helium

a electronegativity decreases beacuse the size of nucleus is bigger.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.