A crystal has a specific pattern, has a short range order. The
repeating subunits that are responsible for the shape of a crystal are known as
crystal lattice.
1.Magnesium (Mg) has two electrons in its outer shell. Mg will <span>try to give two electrons to another atom (because the Mg is metal).
</span>2. When an atom loses electrons, it becomes <span>positively charged because its protons outnumber its electrons. ( In an atom, number of protons = number of electrons, when electrons are lost, the number of protons >the number of electrons.)</span>
The area of the base is
Ab = 2.1 cm x 5.6 cm
The least number of significant figures is 2, so the number of significant figures of the product must also be 2.
Ab = 11.76 cm² which must be rounded-off to 12 cm²<span />
♥ Gather information we know:
Total Mass:
Solve:
<span>Gather more information and solve:
Percent of Oxygen: </span>
<span> </span>
Final answer: 19.44%