What two terms best describe the variable "air pressure inside the football"

dependent, quantitative

Explanation:

The air pressure inside the football is the dependent variable as it depends upon the size and shape of the football. The dependent variable is the one which can be changed or manipulated due to the changes in the independent variable. The independent variable can be manually changed and manipulated.

The quantitative variable is the variable which can be measured in units and counted in numbers. The air pressure in the football can be measured in the football in pascals.

n has four pairs of electrons in the valence shell, electrons repel one another ,n has 7 protons in its nucleus, and since n has 7 protons, it must fill the second shell, giving it 4 pairs of electrons. the electrons form 3 bonds and 1 lone pair of electrons. each pair of electrons repels the other pairs, so they are equally far apart.

so all of the above

indium, and thallium have three electrons i think