Ionic
Covalent
Metallic
Valence Electrons
Misc.
100
How do atoms get the electrons?
They steal them.
100
How do the atoms bond?
They share the electrons
100
How are the electrons shaped inside of metals?
They are free to move in this "sea" like formation
100
What are valence electrons?
Outer most electrons
100
The # of hydrogen atoms in hydrogen gas.
2
200
How does an atom become negatively charged?
It gains electrons.
200
What is a molecule?
A group of atoms held by chemical forces.
200
What are 3 properties of metallic bonding?
Conductivity, ductility, and malleability
200
How many valence electrons does Krypton have?
8
200
The # of hydrogen atoms in ammonia
3
300
What are the chemical properties of an ionic bond?
Hard, brittle, high melting point
300
What are the chemical properties of a covalent bond?
Low melting point, brittle in solid state
300
How is a metallic bond formed?
By the attraction between positively charged ions and the electrons around the ions
300
Atoms can either _____, ______ or_______ valence electron s.
Take, give ,or share.
300
What is a cation and an anion
A cation is a positively charged ion and an anion is a negatively charged ion.
400
What do sodium and chlorine form?
Salt
400
What is the formula for hydrogen peroxide?
H2 O2
400
What is an alloy
Two or more different metals combined together
400
How many valence electrons are in group 6 of the periodic table.
1 or 2
400
How does Na become Na+
When it loses an electron
500
What is the structure of the ionic bond?
Crystal lattice
500
What are molecules called when they only have 2 atoms
Diatomic molecules.
500
Are metallic bonds + or - charged?
Neither, they are neutral. Their anion and cations add up to 0.
500
How many valence electrons does titanium have?
2
500
Which group on the periodic table has full valence electrons?
Group 18
M
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