They become more stable because they achieve a full outer shell of valence electrons with the magic number of 8.
Answer:
Rareness, the others describe what the gold is and its properties.
Answer:
Likely
(indium.)
Explanation:
Number of atoms:
.
Dividing,
, the number of atoms by the Avogadro constant,
, would give the number of moles of atoms in this sample:
.
The mass of that many atom is
. Estimate the average mass of one mole of atoms in this sample:
.
The average mass of one mole of atoms of an element (
in this example) is numerically equal to the average atomic mass of that element. Refer to a modern periodic table and look for the element with average atomic mass
. Indium,
, is the closest match.
Answer: Location 3 is warmer than location 2 and 1
Explanation: