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?
How many ELECTRONS can the second ring/orbital shell hold?
The first ring/orbital shell can hold a maximum of 2 ELECTRONS
The second ring/orbital shell can hold a maximum of 8 ELECTRONS
100
Each time you go down a period, an atom gains a what
Electron shell/ring
100
On a periodic table, what do periods represent
How many 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 many valence electrons does Phosphorus (P) have?
5
100
What is the number of Neutrons located in this element? Round if necessary.
12 neutrons.
200
What particles surround the nucleus
Electrons
200
Atomic mass is made up by the number of _______ and ________ .
protons and neutrons
200
The periodic table is organized by increasing _________.
atomic number.
200
Why would you expect to find Neon in its pure, uncombined form on nature?
It is a noble gas / It has a full valence shell
200
The largest of the 3 main groups is the
metals
200
Electrons have this charge
negative
300
What is the name of the 3 main groups?
metals, non-metals, and metalloids
300
Most metals are solid at room temperature. An exception is _________
Mercury
300
Why do elements in a group have similar chemical properties?
They have the same number of valence electrons.
300
Who is credited with developing the first periodic table.
Dmitri Mendeleev
300
What is the smallest element on the periodic table?
Hydrogen
300
Protons have this charge
Positive
400
Which group contains the most reactive elements?
Alkali metals
400
What are the 3 subatomic parts of an atom
Protons, electrons, and neutrons
400
What has the symbol Ar?
Argon
400
Give two common characteristics of a metal.
shiny, good conductor, malleable, ductile
400
What is the most important use of metalloids?
As semiconductors used in electronics
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
Inside the sun, nuclear fusion creates helium nuclei from __________
hydrogen nuclei
500
Which group has members like Li, Rb, K, and Fr?
Alkali Metals
500
Which group has elements like Xe, Ar, He, and Rn
Noble Gases, Col. 18
500
Which of the subatomic particles make up most of the volume of an atom?
electrons
500
What is the charge of the nucleus? Why... how do you know?
Positive