They have 8 valence electrons, so they are stable and will not readily form bonds with other atoms.
15
What does the group number tell about an atom?
The number of valence electrons present.
10
Which type of atoms are shiny, good conductors, and found to the left of the staircase?
metals
10
Which types of atoms are poor conductors, dull, and found to the right of the staircase?
nonmetals
10
In which orbital block is tin found?
p
15
Explain how to write an abbreviated electron configuration.
Located the noble gas that comes in the period before the desired atom, write its symbol in brackets, and count/summarize each orbital section until finished.
20
Which atom has a greater atomic radius- arsenic or bromine?
arsenic; it is farther left that bromine
15
What does the term "cation" mean?
A positively charged atom that has lost electrons.
