Answer:
the process by which substances in their gaseous state are converted to the liquid state.
Explanation:
When pressure on a gas is increased, its molecules closer together, and its temperature is reduced, which removes enough energy to make it change from the gaseous to the liquid state.
The kinetic theory states that potential energy in a gas is low but has high potential energy and they move around fast, Say in a solid it has more potential energy but less kinetic.
The answer would be B)
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Al
Na
S
O
Br
Ca
Explanation:
The atomic radius is taken as the half of the inter-nuclear distance between two covalently bonded atoms of non-metallic elements. It is also the half - distance between two nuclei in the solid state of metals.
Across a period on the periodic table, atomic radii decreases due to increase in the nuclear charge without an attendant increase in the number of electronic shells.
Down a group atomic radii increases due to successive shells of electrons being added.
a. Al or B : down a group III, so aluminium is larger
b. Na or AI
: across a period so Na is larger
c. S or o
: down group VI so sulfur is larger
d. O or F
: across a period so oxygen is larger
e. Br or CI
: down a group VII so Br is larger
f. Mg or Ca: down a group II so Ca is larger
Learn more:
Atomic radius brainly.com/question/5048216
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Answer:
Rift valleys
Explanation:
An example is the Great Rift Valley in Africa. As plates move apart, they leaves a gap in the crust.