1. PbO is a possible formula units, since O has charge of 2- and Pb can have a charge of 2+ or 4+, if it uses the 2+ ion, the charges will balance out to form PbO. Li+ and B(3-) would have Li3B, Al(3+) and Pb(2+) are both positive charges and would not balance out, Cl- and O(2-) are both negative charges and would not balance out.
2. Iodine is a halogen, so it has a charge of -1. Calcium is an alkaline earth metal in Group 2, so it has a charge of 2+. Therefore, if they were to form a formula unit, the resultant would be CaI2 (2 iodine atoms of 1- charge are needed to balance out the 2+ charge on the calcium atom).
3. Strontium is an alkaline earth metal with a charge of 2+, while phosphorus has a charge of 3-. Therefore, to balance the charges out, we would need 3 atoms of strontium and 2 atoms of phosphorus. This would give the formula unit of Sr3P2.
The correct answer is a molecule.
It is relevant to consider the compositions of the body in terms of basic levels of the organization, which enhance in complexity: subatomic particles, atoms, molecules, organelles, cells, tissues, organs, organ systems, organisms, and biosphere.
The voltage-gated sodium channels come under the molecule level of structural organization. It plays an essential role in action potentials.
The nurse is conducting a physical examination of a 10-year-old boywith a suspected neuromuscular disorder.
The peripheral nervous system, which is made up of all the motor and sensory nerves that connect the brain and spinal cord to the rest of the body, is afflicted by a wide range of illnesses, including neuromuscular disorders. The most common symptom of these illnesses is progressive muscular weakening.
The most prevalent type of motor neuron disease, often known as Lou Gehrig's disease, amyotrophic lateral sclerosis, or simply motor neuron disease, is typically not inherited and has no known cause.
Numerous neuromuscular disorder conditions are incurable. Treatments, however, can enhance symptoms, boost mobility, and lengthen life.
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