The Cost Factor. Get ready to cough it up. The College Board reports that the average cost of one year of in-state tuition and fees at a public four-year school is $8,655. Tack on another $9,205 in room and board costs and youâre looking at an average yearly bill of $17,860.For private school students, the situation is even worse.wo-year students get a huge break on tuition as well. According to the College Board, the average cost of tuition and fees at a two-year school is only $3,131, just over one-third of the cost for a year at a four-year public institution.
Caesium or cesium is a chemical element with symbol Cs and atomic number 55. It is a soft, silvery-gold (or, according to some, silver/colorless) alkali metal with a melting point of 28.5 Â°C (83.3 Â°F), which makes it one of only five elemental metals that are liquid at or near room temperature.
The atomic number of an element is equal to the number of protons in each atom, and defines the element. For example, all carbon atoms contain 6 protons in their atomic nucleus; so the atomic number of carbon is 6.s a special case, the three naturally occurring isotopes of the element hydrogen are often specified as H for 1 H (protium), D for 2 H (deuterium), and T for 3 H (tritium). This convention is easier to use in chemical equations, replacing the need to write out the mass number for each atom.