Classification of the Elements
D-block
What block contains 5 orbitals?
Horizontal rows in the periodic table
What are periods?
To form a positive ion, an electron must be removed from a neutral atom
What is Ionization Energy?
How many blocks does the periodic table have?
4 blocks
group 17 contains the family
what region contains the halogen family of elements?
Group 16, Period 3
Where is Sulfer on the Periodic table?
As you move left to right across a period, this atomic property decreases because the nucleus pulls electrons in more tightly
What is Atomic Radius?
Which scientist first arranged elements by atomic number?
Mosely
The Inner transition metals is this block
What region is referred to as the f-block?
Weighted average of an element's isotopes.
What is Atomic Mass?
This trend, which reflects how strongly an atom attracts shared electrons in a bond, increases across a period and decreases down a group.
What is Electronegativity?
Which category of elements have the property of being malleable and ductile?
Metals
groups 13-18 is referred as this block
What region is referred to as the P-block?
Type of element, found between metals and nonmetals, and has properties of both.
What are Metaloids?
This describes how readily an element loses electrons and behaves like a metal, increases as you move down a group and drecreases across a period.
What is Metallic Character?
Identify period and group members of elements with electron configuration [Ne]3s2 3sp4
Period 3, Group 16
Group 2 contains this family of elements.
What region contains the alkaline earth metal family of elements?
Group of elements first placed in Mendeleevs Periodic table, was later found to be inert gases ad then occupy group 18 in the Modern Periodic table.
What are the Noble Gasses?
These elements on the far right of the periodic table have the highest electron affinities because they strongly want an extra electron to complete their valence shell.
What are the Halogens?
What direction does electronegativity generally move?
Increases left to right