It became so cold during the course of the night, making it hard enough just to skate on. or the lake had frozen completely due to the extreme weather outside.
one of the key circumstances for the existence of matter. Traditionally, matter may exist in three different states: solid, liquid, or gas. For instance, the same chemical exists in the three different states of ice, liquid water, plus steam.
Plasma, a state of matter that is electrically neutral, is frequently regarded as the final state of matter. The lake's temperature rose because it became so cold during the course of the night, making it hard enough just to skate on. or the lake had frozen completely due to the extreme weather outside.
Therefore, the lake had frozen completely due to the extreme weather outside.
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Answer:
The lake went from a liquid to a solid
Explanation:
Since it was so cold overnight, the temperature of the lake increased to the fact that it turned hard enough to skate on. or The temperature outside was so cold it froze the lake solid
(2) rubidium (4) cesium
Answer is: 3) francium.
The atomic radius of a chemical element is a measure of the size of its atom.
The atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.
Potassium (K), rubidium (Rb), ceasium (Cs) and francium (Fr) are in group 1 (the alkali metals) of the periodic tabl.
The atomic radius increases down the group of Periodic table and francium is on the bottom of the group 1 with highest atomic number.
The atom with the largest atomic radius among potassium, rubidium, cesium, and francium is francium, due to it being furthest down the group of alkali metals.
The atomic radius increases as we move down a group on the periodic table. This is because the number of energy levels increases, which causes the electron cloud to expand. Hence, in this case, the largest atomic radius would belong to francium, as it is the furthest down the group of alkali metals (which includes potassium, rubidium, and cesium).
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