Answer:
Certain types of atoms are "radioactive," meaning that they will eventually decay, or "break down" into a different type of atom. In this activity, you will simulate radioactive decay by flipping coins. Coins that land tails-up "decay," and coins that land heads-up remain the same.
Explanation:
#Suoka64
The steeper it is the more it moves
Answer:
b) N3-
Explanation:
The octet rule stipulates that a chemical specie is stable if it has eight electrons in its outermost shell.
Nitrogen belongs to group 15. This means that it has five electrons in its outermost shell. The formation N3- means that it accepted three electrons.
This brings the total number of outermost electrons to eight in accordance with the octet rule.
Answer:
DNA, the proteins in hair, rubber car tires.
Step-by-step explanation:
<em>Polymers</em> are large molecules consisting of long chains of small repeating units.
DNA is a natural polymer that consists of hundreds of millions of repeating units called <em>nucleotides</em><em>.</em>
Hair protein consists of long chains of <em>amino acid</em> repeating units.
The rubber in car tires is a mixture of natural and synthetic rubber. Natural rubber consists of long chains of <em>isoprene repeating units</em>. In one type of synthetic rubber, the repeating units are <em>butadiene and styrene molecules</em>.
The <em>glass in a bottle</em> is not an organic polymer. However, some chemists consider it to be a highly cross-linked inorganic polymer of SiO₂.
<em>Ice crystals</em> are not even inorganic polymers, because the water molecules are held together only by hydrogen bonds, not covalent bonds.