Sedimentary -<span>deposition of material on Earth’s surface or in bodies of water
</span><span>igneous- </span><span>cooled magma
</span>metamorphic-<span>made of hard layers formed under high temperature and pressure</span>
Answer:
In this case, a neutral atom with 12 protons will have 12 electrons. On the periodic table, the atom with 12 protons is magnesium, which is in group 2 . Therefore, it will most likely lose 2 electrons to have 10 electrons, and form a noble gas configuration. So, magnesium becomes Mg2+ .
Answer: When a pair of electrons is shared equally between two atoms, the bond formed is called a: pure covalent bond.
I have used the word pure to enphatize that the pair of electrons is shared equally. Some, bonds share the electrons unequally, yet they are covalent but they are polar. When the pair is shared equally the bond is purely covalent.
Also, you must know that covalent bonds may be single (one pair of electrons is shared), double (two pair of electrons are shared) or triple (three pair of electrons are shared).
Answer:
35.45253819
Explanation:
(0.7578*34.96....)+(0.2422*36.96...)
2n² rule:
This rule is used to determine number of electrons in particular shell.
n=1 means K shell
n=2 means L shell
n=3 means M shell
n=4means N shell
The first K shell can hold upto 2 electrons, L shell can hold up to 8, third M shell can hold up to 18and the fourth N shell can hold upto 32 electrons. This rule of arrangement of electrons according to the shell is known 2n2 rule where n means number of shell.
For example: There is one proton in the nucleus of hydrogen atom, which moves in K shell path. It has no neutron.
