Which is most likely true about electronegativity? It tends to be the same across a period.
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It tends to be the same down a group.
It tends to increase across a period.
It tends to increase down a group.

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?

Element before carbon on the periodic table

An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of amu. (enter a whole number.) numerical answers expected! answer for blank 1: