Unit 1 Matter
This thermal change releases energy.
What is exothermic?
This phase state contains the most energy.
What is a gas?
The amount of this subatomic particle identifies an element.
What is a proton?
This type of element has both metallic and nonmetallic properties.
What is a metalloid/semimetal?
This type of bonding contains what is commonly referred to as "a sea of electrons"
What is metallic?
This type of change indicates a change in matter from reactant to product.
What is a chemical change.
Object A at 40oC and object B at 80oC are placed in contact with each other. Heat flow goes in this direction between the objects.
What is from object B to object A.
The over all charge of an ion that has 11 protons, 10 electrons and 12 neutrons.
What is +1?
This element has similar properties to oxygen and an electronegativity value of 2.6
What is sulfur?
This term can be used to describe a covalently bonded substance.
What is molecule/molecular?
Bronze contains 90 to 95 percent copper and 5 to 10 percent tin. Bronze can be classified as this type of matter.
What is mixture/homogeneous?
This type of process increases the potential energy of the particles in sample.
What is melting/vaporization?
This part of an atom has an overall positive charge.
What is the nucleus?
("Proton" not accepted)
This type of element will form colored ions in solution.
What is a transition metal?
The type of bonds present in Magnesium nitrate.
What is both covalent and ionic?
The given formula represents this type of matter.
C6H12O6 (s)
What s a compound
The amount of heat required to melt 43 grams of solid magnesium oxide at its melting point if its heat of fusion is 1.9 x 103 J/g
What is 8.2 x 104 J?
This electron shell has the greatest amount of energy in an atom of Bromine.
What is the fourth shell/valence/outermost?
The difference between the radius of an atom of Magnesium and the radius of an ion of Magnesium.
What is the atom is larger than the ion? (vice versa)
This type of element is always a linear, nonpolar molecule, with nonpolar bonds.
What are the diatomic elements?
This property is determined by the structure, arrangement, and interactions of the molecules of a substance at a given temperature and pressure.
What is physical state?
oThe final temperature of a 10.0 gram sample of H2O(l) at 23.0oC absorbs 209 joules of heat.
What is 28.0oC
You'll have a high probability of finding an electron in this region.
What is an orbital?
This element has a mass of 26.7g and volume of 3.00cm3 at room temperature.
What is Nickel? (8.90g/cm3)
This pairing of elements would create the most polar bond possible.
What is Francium and Fluorine?