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How many groups and how many periods does the modern periodic table have hydrogen and helium should be counted as the first period.?
The periodic table has 18 groups ant 7 periods. Hydrogen and helium are considered members of the first period.
Why does helium and hydrogen does not come in agroup of periodic table?
Helium has 2 valence electrons and hydrogen has 1 electron. So, they are placed in different groups.
What groups of elements are in the p-block in the periodic table?
last 6 except helium :)
Which groups compose the mains group elements?
Main group elements have elements from groups 1 and 2, except hydrogen and groups 13 to 18. Main group elements are elements in groups who's lightest elements are shown by helium, lithium, boron, beryllium, carbon, nitrogen, oxygen, and fluorine.
Name of element noble gas in period 2?
Neon, it is in Period 2, Group 18. Groups are the columns and Periods are the rows in the Periodic Table.
How many groups and how many periods does the modern periodic table have hydrogen and helium should be counted as the first period.?
The periodic table has 18 groups ant 7 periods. Hydrogen and helium are considered members of the first period.
Why does helium and hydrogen does not come in agroup of periodic table?
Helium has 2 valence electrons and hydrogen has 1 electron. So, they are placed in different groups.
What groups of elements are in the p-block in the periodic table?
last 6 except helium :)
Do helium and selenium have any similarities?
No. they belong to different groups and hence have different properties
What do Helium fluorine and Chlorine have in common?
Helium, fluorine, and chlorine are all elements found on the periodic table. They belong to different groups: helium is a noble gas, fluorine is a halogen, and chlorine is also a halogen. They have different properties and reactivity levels.
What is the period on the periodic table for helium?
1
Which groups compose the mains group elements?
Main group elements have elements from groups 1 and 2, except hydrogen and groups 13 to 18. Main group elements are elements in groups who's lightest elements are shown by helium, lithium, boron, beryllium, carbon, nitrogen, oxygen, and fluorine.
Why does potassium and helium Not make an ionic bond?
Potassium and helium do not form an ionic bond because they belong to different groups on the periodic table. Potassium is a metal in group 1, while helium is a noble gas in group 18. Due to their large difference in electronegativity and stability, they are unlikely to transfer electrons to form an ionic bond.
What is the abbreviation for helium?
He - Helium
Name of element noble gas in period 2?
Neon, it is in Period 2, Group 18. Groups are the columns and Periods are the rows in the Periodic Table.
What is the collective name of the 8 groups that tower the metals on the periodic table?
Hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen.
What is the simble for helium?
The symbol of Helium is He. Helium's atomic number is 2.
