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Hydrogem
Atomic Number is '1'
It is NOT found in the atmosphere, because it is too light and floats into space. and two. when mixed with oxygen it is very flammable.
Hydrogen (H)
Atomic No. 1
Atomic Mass. 1. because it contains ONLY one proton and one electron.
What else can I help you with?
What element has the lowest atomic number in period 3?
The element with the lowest atomic number in period 3 is sodium (Na) with an atomic number of 11.
What is the name of the element with the lowest atomic number?
The element with the lowest atomic number is hydrogen.
What is the lowest atomic number in the periodic table?
Atomic number: The number of protons in an atomic nucleus. (http://www.answers.com/topic/atomic-number) So the lowest atomic number is 1, which is hydrogen, as you cannot have an element with less than one proton.
What is the first radioactive element number?
Of elements that have no stable isotopes, technetium has the lowest atomic number, which is 43.
How was atomic number arranged in a periodic table?
The atomic number of an element is how many protons is in it. So the chart is arranged lowest atomic number to highest.
Which metal has the lowest atomic number?
Hydrogen is a non metal element. Atomic number of it is 1. It is the element with lowest atomic number.
Which element has the lowest number of electrons?
Hydrogen , with ONE electron. Hydrogen exists as three isotopes. Here are the atomic arrangements for these isotopes. protium ; 1 proton , 0 neutrons , 1 electron ( commonest form of hydrogen) deuterium ; 1 proton , 1 neutron , 1 electron ( known as heavy hydrogen/water) Tritium ; 1 proton , 2 neutrons , 1 electron ( radio-active and known as 'super heavy hydrogen). Note , in all cases there is only ONE proton/electron. However, the number of neutrons varies. protium (hydrogen) symbol H . Atomic Mass '1'. deuterium symbol D ; Atomic mass '2'. Tritium symbol T ; atomic mass '3'. NB THe next element in the Periodic Table is Helium(He) Atomic No. 2. Atomic Mass '4. Made up aS;- 2 PROTONS, 2 NEUTRONS AND 2 ELECTRONS. ET SEQ.,
What element has the lowest atomic number in period 3?
The element with the lowest atomic number in period 3 is sodium (Na) with an atomic number of 11.
What is the name of the element with the lowest atomic number?
The element with the lowest atomic number is hydrogen.
Lowest atomic number actinide?
Hydrogen is a none metal element. atomic number of it is 1.
Which element has the lowest atomic number transuranium?
The element with the lowest atomic number among the transuranium elements is neptunium, with an atomic number of 93. It is the first transuranium element produced synthetically in a laboratory setting.
What is the smallest solid element?
The solid element with the lowest atomic number is lithium, with an atomic number of 3.
Has the lowest atomic number in Group 2?
Berylium is a non metal element. Atomic number of it is 4.
What is the Inner transition metal with lowest atomic number?
Technetium (atomic number 43) is the inner transition metal with the lowest atomic number.
Which alkaline earth metal has the lowest atomic number?
Beryllium has the lowest atomic number among the alkaline earth metals.
What element not found on earth has the lowest atomic number?
what is boron
Which element has the lowest atomic number of group 16 elements?
Oxygen is the element having atomic number 8. It is present in group-16.
