2. Click Pause (-). Elements can be classified as metals and nonmetals. Metals do not hold on to their valence electrons very tightly, while nonmetals hold their electrons tightly.
Electron affinity is a measure of how tightly the valence electrons are held.
A. Try pulling an electron away from each atom. Based on this experiment, which atom
is a metal?
Which is a nonmetal?
B. Try moving an electron from the metal to the nonmetal. What happens?

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?

To understand the electric potential and electric field of a point charge in three dimensions consider a positive point charge q, located at the origin of three-dimensional space. throughout this problem, use k in place of 14? ? 0. part adue to symmetry, the electric field of a point charge at the origin must point from the origin.answer in one word.part bfind e(r), the magnitude of the electric field at distance r from the point charge q.express your answer in terms of r, k, and q. part cfind v(r), the electric potential at distance rfrom the point charge q.express your answer in terms of r, k, and q part dwhich of the following is the correct relationship between the magnitude of a radial electric field and its associated electric potential ? more than one answer may be correct for the particular case of a point charge at the origin, but you should choose the correct general relationship. a)e(r)=dv(r)drb)e(r)=v(r)rc)e(r)=? dv(r)drd)e(r)=? v(r)r