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Guess what. I can't see that darn PT Key.
I'll guess. There are 4 sublevels in an atoms electron structure, s,p,d, and f.
Maybe your key applies to that. If some color is in the 1st columns on the left (with the exception of He) that represents the s dublevel. If the last 6 columns on the right are a different that represents the p sublevel. In the middle of the table are 10 columns, alsoreferred to as transition metals, these represent the d sublevels. And at the bottom are 2 rows containing 14 columns (also called the inner transition metals) representing the f sublevels.
What else can I help you with?
What does Periods on the periodic table represent elements?
"Na" is Sodium.
What do the numbers on mendeleev's periodic table represent?
The numbers on Mendeleev's periodic table represent the atomic number of each element, which is the number of protons in the nucleus of an atom. This number determines the element's identity and its placement in the periodic table.
How many periods are there in a Modern Periodic Table?
The Periodic Table has 7 periods (horizontal rows) and 18 groups. The two groups of 14 elements at the bottom (lanthanides and actinides) are parts of the 6th and 7th periods, between groups 2 and 3, but are placed below to limit the displayed width of the table.
What do the horizontal rows on the periodic table represent?
Whereas the vertical columns on the periodic table are called "groups", and represent the number of electrons in an element's outermost electron shell (eg. group 2 elements have twoelectrons in their farthest energy level), the horizontal rows, known as "periods", refer to the number of energy shells surrounding the nucleus of an element.
What do the numbers and letters in the periodic table represent?
either mass or protons the top is the atomic number it shows how many protons the bottom number is the atomic mass also the weight
How are symbols used to represent elements in a periodic table?
Symbols are the short forms to represent elements. Each element will have a unique symbol.
What does Periods on the periodic table represent elements?
"Na" is Sodium.
What is each column in the periodic table called how many of them are there?
The columns represent groups or families of elements. There are 18 of them.
What do the numbers on mendeleev's periodic table represent?
The numbers on Mendeleev's periodic table represent the atomic number of each element, which is the number of protons in the nucleus of an atom. This number determines the element's identity and its placement in the periodic table.
What are rows called in Periodic rable?
Rows in the periodic table are called periods. There are seven periods in the periodic table which represent the energy levels of the elements. Each period signifies the number of electron shells an element has.
What do the letters in the box of the periodic table represent?
The letters are a one- or two-letter symbol assigned to each element
How many periods are there in a Modern Periodic Table?
The Periodic Table has 7 periods (horizontal rows) and 18 groups. The two groups of 14 elements at the bottom (lanthanides and actinides) are parts of the 6th and 7th periods, between groups 2 and 3, but are placed below to limit the displayed width of the table.
What do the horizontal rows on the periodic table represent?
Whereas the vertical columns on the periodic table are called "groups", and represent the number of electrons in an element's outermost electron shell (eg. group 2 elements have twoelectrons in their farthest energy level), the horizontal rows, known as "periods", refer to the number of energy shells surrounding the nucleus of an element.
What do you call elements in a row on the periodic table?
Elements in a row on the periodic table are called periods. They represent the number of electron shells an element's atoms have. Each period corresponds to the energy level of the electrons in an element's atoms.
What do the numbers and letters in the periodic table represent?
either mass or protons the top is the atomic number it shows how many protons the bottom number is the atomic mass also the weight
How many boxes are there in the periodic table?
There are 18 columns (groups) and 7 rows (periods) in the periodic table, creating a total of 18 * 7 = 126 individual "boxes." Each box represents an element with unique properties and characteristics.
Where are elements found on periodic table?
On the periodic table there are squares. Each square corresponds to one element.
