Science
Periods
Rows in the periodic tables is called
Groups
columns in the periodic table are called
2 in the first shell
8 in the second shell
What is the capacity of the electrons in the first shell and the second shell
Mendeleev
who created the periodic table
The periodic table goes in order of what?
Atomic number
When to atoms share a electron while bonding
covalent bonding is
The Nucleus
An atoms electrons are arranged around
7
How many periods are in the periodic table
If an atom of carbon has 6 protons and 5 electrons it has this charge.
+1
Where two atoms share electrons they bond
Covalent Bonding
Na is the symbol for?
Sodium
electrons in the outer most shell
What are valence electrons
Electrons
What circles around the nucleus
18
How many groups are in the periodic table
O is the symbol for?
Oxygen
Metals metalloids nonmetals
What are the 3 main types of elements
You want this gas at your birthday
Helium
electrons
What circles around the nucleus
Li is the symbol for?
Lithium
Nucleus
What is the center of the atom called
Gd is the symbol for
Gadolinium
true or false elements slowly change
true
Xe is the symbol for?
Xenon
true or false electrons are randomly located around the nucleus
false
Nb is the symbol for?
Nioibum