Periodic Table
When moving across the periodic table from left to right, the rows are called.....
Periods
?How many valence electrons does Oxygen have?
6
What is an ion?
A positively or negatively charged particle.
What is an atom?
The smallest particle of an element that still has all of it's properties.
When moving up and down on the periodic table, the columns are called....
Groups
How many valence electrons does Hydrogen have?
1
When an atom loses an electron, it becomes more....
positively charged
Why do atoms form ions?
To make their valence shells full.
True
How many valence electrons does Magnesium have?
2
When an atom gains an electron, it becomes more.....
negatively charged
What are the three ways atoms form bonds?
By gaining, losing, or sharing electrons.
Where are the "Noble Gases" located on the periodic table?
How many valence electrons does Phosphorus have?
5
Why don't the noble gases form ions?
Their valence shells are full, so they do not need to gain or lose electrons.
What two particles are located in the nucleus of an atom?
Neutrons and protons