Which family tends to form an cation with a charge of +2?
Group 2 or the Alkali Earth Metals
These colorless and odorless gasses have a full electron shell
The Noble Gases
Most of the elements on the periodic table are _____
Metals
My atomic symbol is Na
Sodium
What is responsible for the reactivity of an atom?
valence electrons
An atom of Boron gains two electrons. What is its new charge?
What is the nucleus?
Transition metals
The atomic number tells us the _____
number of protons
The two particles that are always found in the same number in a neutral atom
What are protons and electrons.
What are the two most reactive families on the periodic table?
alkali metals and halogens
What are 2 properties of Metalloids?
Semi-conductors, shiny, brittle
Will Nitrogen tend to form an anion or cation? Why?
Anion because it needs to gain 3 electrons to have a full electron shell
What are the 3 types of elements?
Metals, Metalloids, Non-Metals
An atom has 30 protons, 31 electrons, and 35 neutrons. What type of atom is this and what is its atomic mass?
Zinc and 65 amu
What is the charge of an atom with 30 protons and 28 electrons and is it a cation or an anion?
+2, cation
What do the families of the periodic table have in common?
valence electrons OR physical and chemical properties
What does each period of the periodic table have in common?
number of energy levels/shells/orbitals