Write to explain trenus un pr
ASSIGNMENT
Using the periodic table, select two main group
sets of elements (suggestion: pick group 1 or 2
and group 15, 16, or 17). Describe any trends in
electronegativity and first ionization energy in each
group. Explain these trends.

What can be added to the examples section of each circle? endothermic: ice melting into water, and a heat pack becoming warm exothermic: a glow stick glowing, and fireworks exploding endothermic: ice melting into water, and an instant ice pack turning cold exothermic: fireworks exploding, and gasoline burning endothermic: a glow stick glowing, and a heat pack becoming warm exothermic: an instant ice pack turning cold, and ice melting into water endothermic: gasoline burning, and an instant ice pack turning cold exothermic: ice melting into water, and an instant ice pack turning cold

What are four significant sources of ghgs that come from wostem washington?

Which material burns faster? metal aluminum