An ionic<span> crystal consists of </span>ions<span> bound together by electrostatic attraction. The arrangement of </span>ions<span> in a regular, geometric structure is called a crystal lattice. Examples of such </span>crystals<span> are the alkali halides, which include: potassium fluoride </span>
Answer:
4d orbital.
Explanation:
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In this case, since zirconium's atomic number is 40, we fill in the electron configuration up to 40 as shown below:

Thus, the orbital 4d is partially filled.
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Two elements that have similar properties has silicon would be above or below silicon. they are germanium or antimony.
Answer:
the answer is true
Explanation:
it is the smallest particle in an element that takes part in a chemical reaction
Answer:
the scientific name is Angiosperms
Explanation:
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