2 .What is the 2nd most prevalent element in soil (name, not symbol)? 3. What is the name of the next heaviest element in the same family as oxygen? 4. Give the names of three halogens. 5. What is the group of elements called that consists of very unreactive gases? 6. Sublimation is a change from the ____________ phase to the ____________ phase.
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
2 .What is the 2nd most prevalent element in soil (name, not symbol)?
3. What is the name of the next heaviest element in the same family as oxygen?
4. Give the names of three halogens.
5. What is the group of elements called that consists of very unreactive gases?
6. Sublimation is a change from the ____________ phase to the ____________ phase.
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#26(a): Element or compound?
#26(b): Element or compound?
#26(c): Element or compound?
#26(d): Element or compound?
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