Which things determine an element's electronegativity? check all that apply. a. the size of the atom of that element b. whether the element is a gas or a liquid at room temperature c. the number of neutrons d. the number of electrons in the valence shell physics

What type of nuclear decay causes the atomic number of an element to increase by 1?

Which of the following elements is in the same period as phosphorus? a. carbon c. nitrogen b. magnesium d. oxygen select the best answer from the choices provided a b c d

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.