Periodic Table 1
Name this element: Cu
copper
T/F: Protons + Neutrons = Atomic Mass; If false fix the statement.
True
Name this element: K
Potassium
What is the mass of fluorine (F)?
19 amu
If the elements are in the same column, they must have Lewis Structure that are _________
(similar or different)
similar
How many valence electrons does the group 1 or Alkali group have?
1
Whats the symbol for Mercury
Hg
what does excited state mean?
when an electron temporarily occupies an energy state greater than its ground state.
how many valence electrons does chlorine have?
7
How many sublevels exist in the 1st energy level?
Only 1
define isotope-
an atom with the same number of protons but different numbers of neutrons. share chemical properties differ in mass.
What are Group 2 elements called?
Alkaline Earth Metals
How many protons does cobalt (Co) have?
27
The vertical columns of the periodic table are called
groups/families
This group of metals are the most reactive
Group 1; Alkali metals
T/F: Hydrogen is a metal. If false, fix the statement.
False
what does ground state mean?
the lowest energy state of an atom or another particle.
how many valence electrons does phosphorus have?
How is it possible for an electron to go from the 3rd to the 4th energy level?
It absorbs energy so it can jump to higher levels.
How many orbitals are in sublevel p
3
This class of elements have properties of both metals and nonmetals.
Metalloids
Noble Gases
When an atom has a neutral charge, then it has the same number of ______ and _______.
protons and electrons
T/F: Atoms that are in the same column of the periodic table will have the same number of valence electrons.
False
A row on the periodic table is called ______.
periods or series