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How are the periods on the periodic table numbered?
The elements are listed in the order of how many atoms they have. For example, hydrogen is the first element on the periodic table. Hydrogen is the smallest element, and has one atom.
What element has 16 protons 19 neutrons and 18 electrons?
35, 16, and another number. S=Sulfur off the periodic table.
What are the classification of element in a periodic table?
periodic table is classified into groups and periods.There are 18 groups and 7 periods in periodic table.
Why is argon 18th in the periodic table?
Argon has 18 protons. Hence it is the 18th element in the modern periodic table. (The elements in the periodic table are arranged in the increasing order of their atomic number and repeating properties)
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.
Which of the elements on perdiotic table has 17 protons and 18 neutrons?
Chlorine-35, the most common isotope at 75%.
What group does argon belong to on the periodic table?
Argon (Ar, element number 18) is the last element in the third period of the periodic table.
How many regions are there in the periodic table with in each element?
The periodic table of Mendeleev has 18 groups and 7 periods.
An element found in group 18 of the periodic table?
argon
In which pattern modern periodic table was arranged?
The periodic table has 7 periods and 18 groups. The order of elements is governed by the number of protons.
What element has 18 protons?
The element that has 18 neutrons is ARGON... Wow, why didn't look in a periodic table? Is easier ask here??? Actually, 18 is argon's atomic number, and it also has 18 protons and electrons.. but it has 22 neutrons. The number of neutrons = mass number - number of protons. Soo, the answer is Chlorine, 17 protons, 17 electrons and 18 neutrons
What group on the periodic table contains element bonds?
group 18
