Answer:
Element X is Arsenic (As)
Explanation:
- Elements in the periodic table are either metals, non-metals or metalloids.
- Metals are elements that react by losing electrons to obtain a stable configuration and form cation.
- Non-metals are those elements that react by gaining electrons to form a stable configuration and form anion.
- Metalloids are elements in the periodic table that have both metallic and non-metallic properties.
- Examples of metalloids include Selenium, Arsenic, Boron, etc.
- Arsenic is a metalloid in period 4 (four energy levels) with five valence electrons.
Lithium fluoride is a solid at room temperature because it is a salt that is held together by ionic bonds. Lithium. fluoride has a giant ionic structure.
Answer:
<h2>Pressure will increase</h2>
Explanation:
At a constant temperature, the pressure of gas will increase proportional to the decrease in volume of the gas.
P1V1= P2V2
Decrease in volume result in increase in pressure as the equation has to hold true.
The six basic elements of weather include temperature, humidity, atmospheric pressure, wind, precipitation, and cloudiness.
~I knew this was asked 5 days ago, but I hope this still helps.
All of the the answers are are correct but a fume hood is more for if you are dealing with chemicals that can produce fumes the are deadly to people
