Cs and F
Explanation:
The two elements on the periodic table that would be most reactive would be Cesium and Florine.
Florine is the most electronegative and the most reactive non-metal on the periodic table. It has a small size and needs just one electron to complete its octet.
Cesium is the most electropositive non-metal. It requires just a loss of one electron to be stable and have complete octet.
Cs and F are the most electropositive and elecronegative elements on the periodic table of elements.
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The density of an object is mass / volume. These units are unusual but since you are reporting your answer in kg/L, the actual conversion is unnecessary
d = m/V
d = 7.2 kg / 9 L
d = 0.8 kg / L
Answer:
48 000 cm^2
Explanation:
8000 1cm cubes
each 1 cm cube side is 1 cm^2 and there are six sides to the cube , so each cube has 6 cm^2 surface area
and there are 8000 of them 8000 * 6 cm^2 = 48 000 cm^2
Answer:
Neutrons
Explanation:
Isotopes are variations of an element that differ from the number of neutrons.