Category 1 Flashcards
What subatomic particles determine the identity of an element?
Protons
What determines the reactivity of an element?
Valence electrons
What do the periods on the periodic table determine?
Energy Levels (rings)
Which groups on the periodic table are the most reactive?
Group 1 & Group 17
Which group in the periodic table is the least reactive and what is its name?
Group 18, Noble Gases
This subatomic particle is found in the nucleus, has a mass of 1 amu, and has no charge?
Neutron
This subatomic particle is negative, has a mass of < 1 amu, and is found in the electron cloud?
Electron
This subatomic particle is found in the nucleus, has a mass of 1 amu, and has a positive charge?
Proton
How many valence electrons does the element Oxygen have?
6
How many energy levels does the element Calcium have?
4
What will be the overall charge of the nucleus of an atom?
Positive
This element is shiny, malleable, and a semi-conductor, what will the element be considered?
Metalloid
This element is dull, brittle, and a poor conductor (insulator), what will the element be considered?
Nonmetal
This element has luster, malleable, and a excellent conductor, what will the element be considered?
Metal
These elements are found on the staircase or zigzag line on the periodic table?
Metalloids
