Which of the following elements in period 2 has the least mass?
What element in Period 2 has the least mass Among all the elements in period 2 of the modern periodic table, lithium (Li) is known to have the lowest mass. The noble gas neon (Ne) has the highest mass among all the elements in period 2. Was this answer helpful?
What is the lightest element in period 2?
The lightest element that is in period number 2 is lithium. Lithium is also the solid that is the least dense. What element is in period 2 with an atomic mass of 11?
What are the elements in period 2 of the periodic table?
The elements in Period 2 of the periodic table are: Lithium, Beryllium, Boron, Carbon, Nitrogen, Oxygen, Fluorine, and Neon. Lithium has a mass of about 6.941
How much mass does carbon have?
What are the elements in Period 2?
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Which element is period 2 has the most mass?
The element in Period 2 with most mass is clearly the element with the highest atomic number, Z , and that is Ne , Z=10 , 21.08⋅g⋅mol−1 .
Which element has least mass?
HydrogenThe lightest chemical element is Hydrogen and the heaviest is Hassium.
Which element in Period 2 is the least reactive?
lithiumThe elements in period 2 often have the most extreme properties in their respective groups; for example, fluorine is the most reactive halogen, neon is the most inert noble gas, and lithium is the least reactive alkali metal.
What are the elements that belong to period 2?
3.5: The Second Period of the Periodic TableBeryllium, Atomic Number 4.Boron, a Metalloid.The Element of Life, Carbon.Nitrogen from the Air.Oxygen, the Breath of Life.The Most Nonmetallic Element, Fluorine.
Which has the least mass in atom?
The fundamental particle that has least mass is electron.
Which element has lowest atomic mass Brainly?
The element with the lowest mass is hydrogen. It is the first element in the periodic table.
Which list of elements from period 2 is arranged from highest to lowest ionization energy?
The order is Be < C < B < N < F < O < Ne < Li .
Which element in period 2 is the most reactive?
16. Two highly reactive elements in Period 2 are the metal lithium and the a. C. nonmetal fluorine.
Which element is in Group 2 period 2?
Answer: Berilium. Berilium is located in period 2 group2.
Which element is a halogen in period 2?
The halogen in period 2 is fluorine and it is denoted by symbol F. Thus, the halogen in period 2 is fluorine (F).
What is the number of electrons in period 2?
8 electronsIn the second period, we have 2s and 2p orbitals, which can accomodate a maximum of (2+6)=8 electrons. Hence, maximum number of valence electrons is 8.
What element in period 2 has 2 valence electrons?
A: Calcium is a group 2 element with two valence electrons. Therefore, it is very reactive and gives up electrons in chemical reactions.
Which has less mass?
The part of the atom with the smallest mass is the electron.
What are the lightest elements?
Hydrogen, H, atomic number one, is the lightest element. Hydrogen makes up about 75 percent of the universe's elemental mass.
What is the heaviest element?
The heaviest element found in any appreciable amount in nature is uranium, atomic number 92. (The atomic number refers to the number of protons in an atom's nucleus.)
Which particle on table O has the least mass?
Answer and Explanation: Electrons are the subatomic particles that have the least mass.
What is the lightest element in period 2?
Period 2 elements involve the 2s and 2p orbitals. They include the biologically most essential elements besides hydrogen: carbon, nitrogen, and oxygen. Lithium (Li) is the lightest metal and the least dense solid element.
What is the first element?
Hydrogen is known to be the first element in the periodic table of elements. It has one proton in its nucleus and one outter electron. It is a very light gas and also flammable. Hydrogen, H, is the lightest of all gases and the most abundant element in the universe.
What number increases from 3/10 to Period 2?
In the periodic table, atomic number increases from 3 to 10 in period 2. Explanation: Atomic numnber is the total number of protons present in an atom. And, when we move across a period then there occurs an increase in atomic number of the elements.
What is period 2 on the periodic table?
Period 2 is the first period in the periodic table from which periodic trends can be drawn. … All period 2 elements completely obey the Madelung rule; in period 2, lithium and beryllium fill the 2s subshell, and boron, carbon, nitrogen, oxygen, fluorine, and neon fill the 2p subshell.
What do you call the element from atomic number 57 71?
What do you call the element series from atomic number 57-71? Silicon.
Is sulfur a metal?
T or F: Sulfur is a nonmetal.
Is radon a metal?
T or F: Radon is a metal.
How much mass does carbon have?
Carbon has a mass of about 12.011
What are the elements in Period 2?
The elements in Period 2 of the periodic table are: Lithium, Beryllium, Boron, Carbon, Nitrogen, Oxygen, Fluorine, and Neon .
