Periodic Trends
Is a neutron positive, negative, or neither
neither
what number tells you the number of protons and electrons?
Atomic Number
Non-metals take up the smallest space on the periodic table. True/False
False
Metals make up 75% of the periodic table
True/False
True
What particle has a negative charge?
electron
Does an electron have mass?
No.
Are non metals good conductors of heat and electricity?
No they are not
Is Mn a metal?
Yes
What particle has a positive charge?
Proton
How do you find the atomic mass of the element??
Number of neutrons and protons added together.
Do non metals have....
1. low melting and boiling point and low densities
2. high melting and boiling point and high densities
3. low melting and boiling point and high densities
4. High melting and boiling point and low densities
1. low melting and boiling point and low densities
Most common type of metal on the periodic table?
Transition metals
What is not in the nucleus?
Electrons
Orbitals are filled from the lowest to the highest energy levels. True or False
True
First non-metal on the periodic table?
Hydrogen
The three types of metals on the periodic Table?
What is the center of the atom called?
Nucleus
where are valence electrons??
How many nonmetals are on the periodic table?
17
How many metals are on the periodic table?
91/118