Periodic Table 1
Periodic Table 2
Periodic Table 3
Periodic Table 4
Periodic Table 5
Periodic Table 6
100
How many ELECTRONS can the first ring/orbital shell hold?
The first ring/orbital shell can hold a maximum of 2 ELECTRONS
100
Each time you go across a period, an atom gains a what?
a proton
100
On the periodic table, what do periods represent?
Each period indicates how many energy rings/shells an atom has.
100
An atom’s mass number is 210 and its atomic number is 85. How many neutrons does the atom have?
125
100
How do you determine the number of valence electrons in an element?
If the element is in group 1 or 2, use the group number. If the element is in group 13 - 18, subtract 10 from the group number.
100
What is the number of Neutrons located in this element? Round if necessary.
12 neutrons.
200
What particles surround the nucleus?
Electrons
200
What is atomic mass?
Number of protons and neutrons added together
200
How is the Periodic Table organized?
By increasing atomic number.
200
What is an Element?
A substance composed of a single KIND of an atom.
200
The largest of the 3 main groups in the Periodic Table is the _________ group.
metals
200
Electrons have this charge
negative
300
What are the names of the 3 main groups in the Periodic Table?
metals, non-metals, and metalloids
300
How many elements are located on the Periodic Table?
118 .
300
What are valence electrons?
The electrons in the outermost energy shell that are involved in chemical bonding
300
What is a compound?
A substance in which two or more different elements are chemically bonded.
300
What is the smallest element on the periodic table?
Hydrogen
300
Protons have this charge
Positive
400
What kind of fish is made up of 2 atoms only?
2Na
400
What are the 3 parts of an atom?
protons, electrons, and neutrons
400
What has the symbol Ne?
Neon
400
How does the number of valence electrons affect an element's reactivity?
The number of valence electrons dictates an element's chemical reactivity by determining how close it is to achieving a stable, full outer shell
400
Why is He chemically stable even though it only has 2 electrons?
Because it only has 1 energy level and the 2 electrons fill it.
400
What does the Atomic Number represent?
The number of Electrons and Protons located in a specific element.
500
Similar chemical properties determine which _____ an element is located in.
group
500
How many valence electrons are in the element Xe and what can you predict about its reactivity?
Xe has 8 valence electrons. It is non-reactive because its outermost energy level is full.
500
Which group has members like Li, Rb, K, and Fr?
Group 1 the Alkali Metals
500
Which group has elements like Xe, Ar, He, and Rn?
Group 18 the Noble Gases
500
Why is Na more reactive than Ne?
Na is in Group 1 and has 1 valence electron. Group 1 is the most reactive metal group. Ne is in Group 18 and its outermost energy level is full. Group 18 is the non-reactive group.
500
What is the charge of the nucleus?
Positive