Periodically
Each family (up and down) in the periodic table has the same…
What is valence electrons
In MgBr2, what does the “2” tell you?
There’s 2 Brs for every 1 Mg
An attraction between oppositely charged ions is called what type of bond?
ionic
In a chemical formula, which chemical is written first?
the positive ion
Which neutral subatomic particle is in the nucleus of an atom?
neutron
Group 18 element, that do not bond, are known as the…
noble gases
When an atom loses a negative electron (e-) it becomes…
What is positive
What do ionic compounds look like?
salts
A bond that shares valence electrons is called
covalent
What do we call the electrons that are involved in the bonding between atoms?
valence e-
Copper, oxygen, and helium are examples of what?
elements
If Group17 (7v), gain one more valence e-, how many will they have?
8
Ionic bonds have high _____ points
melting
A bond that gives and takes valence electrons is called
ionic
A stable atom has how many electrons?
8 or 2
Elements in group 1 have what type of charge?
1+
When ions with a positive charge bond with ions that are a negative charge, the resulting compound is….
stable
What type of bond is when two or more atoms share electrons?
covalent
What is the ratio of this compound? NaCl
1:1
Because the electrons in a molecule of water (H2O) are more strongly pulled toward the oxygen atom, it would be classified as…
polar
The column (up and down) in the periodic table is called a…
family
Ionic compounds, when dissolved into water, conduct electricity because
they break into freely moving ions
Non-polar covalent bonds have low ___________ points
boiling
How many dots would Al have in an electron dot diagram?
3
The electrons held the most loosely to the atom’s nucleus are called…
valence