Examine the block from the periodic table for the element nitrogen, chemical symbol n. using your knowledge of the periodic table, which of these statements is correct about nitrogen?
a) all nitrogen atoms have 7 protons.
b) the mass number of nitrogen is 21.
c) all nitrogen atoms have 14 protons.
d) nitrogen atom has more protons than a fluorine anion.
eliminate

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.

How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate