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Row 1, group 18.
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∙ 14y ago
Helium is in Group 18 (also known as the noble gases) and in the top row of the Periodic Table.
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Each row in the periodic table ends when an outer energy level is what?
filled. That would be 2 electrons for helium, and 8 electrons for the rest of the noble gases in group 18 on the periodic table.
What is the element in the first row of the periodic table that is not a alkali metal?
hydrogen (and helium)
What is so important about the row 10 in the periodic table for the element nickel?
The row 10 is the 10th group. Nickel is in the 10th group of the periodic table. It belongs to the d block.
Which element in the row are the least reactive?
In any row of the periodic table, the group 8 element - the noble gas - is the least reactive. The known group 8 elements are Helium, Neon, Argon, Krypton, Xenon and Radon
A group of elements on the periodic table is also called a?
row
What group and row is hydrogen in on the periodic table?
Hydrogen is found in group 1 row 1 of the periodic table
A row on the periodic table?
a horizontal row is called a period.a vertical row is called a group
Each row in the periodic table ends when an outer energy level is what?
filled. That would be 2 electrons for helium, and 8 electrons for the rest of the noble gases in group 18 on the periodic table.
What two elements are found in the first row of the periodic table?
Hydrogen and Helium
What is the element in the first row of the periodic table that is not a alkali metal?
hydrogen (and helium)
What is the horizonta row on the periodic table called?
The horizontal row on the periodic table is called the "period". The vertical column is called the "group".
What is a vertical row in periodic table called?
Group.
Which element is located in period 1 of the periodic table?
Period 1 refers to the top row of the periodic table. These elements are Hydrogen and Helium.
What is the electron configuration for Heluim?
Helium is at the end of row 1 in the periodic table 1s2
How many valence electrons does the last row on the periodic table except helium?
8
What row is arsenic in on the periodic table?
On a standard periodic table, Arsenic (As) is in Row 4, Column 15.
What is so important about the row 10 in the periodic table for the element nickel?
The row 10 is the 10th group. Nickel is in the 10th group of the periodic table. It belongs to the d block.
