Answer:
A compound is a substance formed when 2 or more chemical elements are chemically bonded together
Explanation:
Types of compounds may vary but the 2 most common ones are covalent and ionic bonds.
Answer:
The correct answer would be - strontium, magnesium, beryllium.
Explanation:
As we know that the number of the same valence electrons is most likely to exhibit similar physical and chemical properties so the elements of the particular group in the periodic table have a similar number of physical and chemical properties and a similar number of the valence electrons.
For example, group 2 elements are known as alkaline earth metals, and strontium, magnesium, beryllium, and calcium are the same group elements thus, they have the same chemical and physical properties as they have 2 valence electrons.
Deletions are mutations<span> in which a section of DNA is lost, or deleted. Since protein-coding DNA is divided into codons </span>three<span> bases long, insertions and deletions can alter a gene so that its message is no longer correctly parsed. These changes are called frameshifts.</span>
It's depends on the size of molecule. big ones cannot pass the membrane while smaller molecules can.
The numbers that is represented after the species represents the number of question that should be considered next.
