Answer:
Bones. They are vertabrates, which means they have a backbone
Explanation:
Fish, reptiles, amphibians, birds and mammals all have bones
Answer:
1. Magnesium and oxygen atoms bond to form an ionic compound; this is evident because one forms a cation and the other an anion. When an ionic compound is formed, one atom "steals" an electron (or electrons) from another. In this case, an oxygen atom (which is pretty electronegative by the way) "steals" 2 electrons from a magnesium atom. The resulting oxygen anion and magnesium cation attract one another to form a bond (more specifically, an ionic one).
2. The oxygen atom needed two sodium atoms to bond because it needs two additional electrons to achieve a stable octet of electrons. 1 sodium atom provides 1 additional electron after it is "stolen" by oxygen, so 2 sodium atoms are needed in total to form the bond.
3. The magnesium atom needed two fluorine atoms to bond because it needs to lose two electrons to achieve a stable configuration/octet of electrons. 1 fluorine atom "steals" one electron, so 2 are needed in total.
Happy Holidays!
Answer:
mercury is one of the inner planets.
Explanation: The inner planets are also called terrestrial planets.
*gases escaped from them during the planets’ formation.
*mercury, Venus, earth and mars are the four inner planets. they are also called terrestrial planets because they have solid and rocky surfaces similar to earth.
* the inner planets are much smaller than the outer planets (Jupiter, Saturn, Uranus and Neptune).
* the inner planets are composed of mainly heavy metals such as iron and nickel, and they do not have moons. during the inner planet’s formation, thick gas atmospheres are blown away .
The rat. I don't know if you meant zodiac ANIMAL or astrology sign like aquaris for example. however the rat zodiac animal is defined as the weakest of all the zodiac animals.
Have a Merry Christmas,
Miri
This theory was first proposed by Nicolaus Copernicus<span>. </span>Copernicus<span> was a Polish </span>astronomer<span>. He first published the heliocentric system in his book: De revolutionibus orbium coelestium , "On the revolutions of the heavenly bodies," which appeared in 1543.</span>
