Periodic Table 1
The electrons involved in chemical reactions are these.
What are valence electrons?
The electrons in the outer energy level are called this.
What are valence electrons?
The atomic number tells you this.
What is the number of protons (and electrons) an atom of an element should have?
Besides number of Valence Electrons, what do elements in the same group (column) share?
What are similar characteristics/chemical properties?
What are the most reactive metals on the periodic table called?
What are alkali metals?
What is the Periodic Symbol for Potassium?
What is K?
An atom with a completely full outer most (valence) energy level is this.
What is unreactive/ noble gas?
What does the characteristic "malleable" mean?
What is "able to be hammered or pressed permanently out of shape without breaking or cracking".
The columns on a periodic table are called this.
What are groups?
These atoms have properties of both metals and non metals.
What are metalloids
Elements in groups 3-12 are called what?
What is transition metals
Why are some Periodic Symbols not the first letter of the element name?
Example: Iron=Fe
What is the symbol comes from the original Latin name of the element (example: Iron=Fe=Ferrous
Group 17 contains highly reactive nonmetals with seven valence electrons that tend to react violently with alkali metals and are more commonly known as this.
What are halogens?
Elements in groups 13-16 contain one or more of these class of hybrid type elements.
What are metalloids?
Along with common properties, elements in the same group share this.
What are the same number of valence electrons
What creates the different colors in fireworks?
What is different metals show different colors when burned.
Group 18 elements are extremely nonreactive nonmetals known as this.
What are noble gases?
Extremely reactive elements in group 1 have only 1 valence electron and are known as this.
What are alkali metals?
The rows on a periodic table are known as this.
What are periods?
The three classes of elements are these.
What are metals, metalloids, and nonmetals?
What groups are located underneath the periodic table?
Lanthanides and Actinides
The modern periodic table is organized according to this.
What are by increasing atomic number?
Where can we find non-metals on the periodic table?
On the right, groups 13-18 and hydrogen
Why do gases glow or produce light when exposed to an electrical current? Hint: Think back to our classroom demonstration
What is when energy is added to a noble gas, it puts it in an unstable situation. It wants to get back to stability so it gets rid of the extra energy in the form of light energy.
Very reactive elements in group 2 have only 2 valence electrons and are known as this.
What are alkaline Earth metals?