Periodic Table 1
The electrons involved in chemical reactions are these.
What are valence
The electrons in the outer energy level are called this.
What are valence electrons?
Elements in the same group share these characteristic
What are chemical and physical properties?
The noble gases share this characteristic with regard to their atomic structure.
What are full orbitals?
This compound is used to flavor food.
What is sodium chloride?
The three classes of elements are these.
What are metals, nonmetals?
An atom with a completely full outer most (valence) energy level is this.
What is unreactive?
Metalloids are known to have this property which concerns the ability to conduct heat and electricity at certain temperatures.What is semiconductivity?
What is semiconductivity?
The reactivity of an element is dependent on this.
What is the ability of an atom to either completely fill or empty its outer most energy level?
This makes up about 80% of the air we breathe
What is nitrogen
water molecules are attracted to each other becuase
What is the positive area of one water molecule that is attracted to the negative area of another?
Mendeleev organized the elements of his periodic table according to this.
What is increasing atomic mass?
The reactive elements in group 2A are known as this.
What are alkali earth metals?
This is the trend on the periodic table with regard to atomic radius size.
What is increases top to bottom within a group and decreases from left to right across a period?
This metal in the boron group is used for aircraft parts
What is aluminum
These are the properties of nonmetals.
What are brittleness, low boiling/melting points, dull, and are good insulators?
Group 18 elements are extremely nonreactive nonmetals known as this.
What are noble gases?
Extremely reactive elements in group 1 have only 1 valence electron and are known as this.
What are alkali metals?
Nonmetals form this type of ion.
What are anions or negatively charged atoms?
Cement and chalk are compounds of this
What is calcium
This class of elements have properties of both metals and nonmetals.
What are metalloids?
The first energy level/shell/orbital location is
What is closest to the nucleus?
The process of atoms joining together by sharing electrons
What is covalent bonding?
The energy required to remove an electron is known as this.
What is ionization energy?
Diamond and soot are form of this
What is Carbon