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How many protons does an atom of the first element listed on the periodic table have?
Wiki User
∙ 13y ago
Hydrogen, being the first element, has one proton and one neutron in its nucleus.
Wiki User
∙ 13y ago
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What was the first periodic table?
Hydrogen is the first chemical element in the Periodic Table of Mendeleev.
What element that is a metal has 28 electrons?
The element with atomic number 28 is Nickel (Ni). It is a transition metal in period 4 of the Periodic Table. It is the first element in the Nickel family. It has 28 electrons in 4 shells with 2 electrons in the outer shell.
What is the first element in the periodic table?
Hydrogen: represented on the table with by the symbol HIt has the lightest atomic weight of all elements at 1.00794Hydrogen is the most abundant chemical element, constituting roughly 75% of the universe's elemental mass.
Why is hydrogen the first element?
As the periodic table is arranged in order of increasing atomic number hydrogen is the first element in the periodic table as it has only one electron.
How is the element with atomic number 82 in the periodic table different from the element in the atomic number 81?
The atomic number the the number of protons and therefore the total positive charge in the nucleus. So the the element with the atomic number 82 has more protons and a greater nuclear charge then the atomic number of 81. More protons can mean many different things such as a smaller radius, greater first ionisation energy or greater electronegativity.
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.
How do you find protons in elements on the periodic table?
It's the same as the Atomic number, which is the number on an element that usually has no decimal, and is the first number listed. Same goes for electrons.
How many protons are in each of the first 10 elements?
The periodic number of an element signifies its number of protons. Hydrogen, the first element, has one proton. Helium, the second element, has two protons. Lithium, the third element, has three protons. I'm sure you can figure out the rest.
How many protons doeshydrogen have?
The number of protons in a molecule is listed by its number in the Periodic Table, so hydrogen, being the first, has 1 proton.
What can be found in a periodic table?
The Periodic Table states all known Elements, and element's atomic number, and if a element is metalic or non-metalic.
Is the atomic number of each element included in the periodic table?
YES!!! The atomic No. is the postition of the element in the periodic table. It also indicates the number of protons in the element and electrons in the neutral element. The Atomic Mass is also included in the periodic table. The Atomic Mass is the sum of all the protons and neutrons of an element in the periodic table. Here are some examples. Hydrogen ; [1/1]H The first element in the table Carbon ; [12/6]C The sixth element in the periodic table Oxygen ; [16/8]O The eighth element in the periodic table et.seq., The first number given is the Atomic Mass and the second number is the Atomic Number.
What element has 24 protons and 21 electrons?
An element's number of protons is the same as its atomic number. Thus, an atom with 21 protons has the atomic number 21. By looking up this element on the periodic table, one finds that it is scandium.
How do you calculate the number of neutrons an atom of a specific element has?
First, find its atomic mass on the periodic table and subtract the number of protons (element number) from it and there you go
What was the first periodic table?
Hydrogen is the first chemical element in the Periodic Table of Mendeleev.
What element that is a metal has 28 electrons?
The element with atomic number 28 is Nickel (Ni). It is a transition metal in period 4 of the Periodic Table. It is the first element in the Nickel family. It has 28 electrons in 4 shells with 2 electrons in the outer shell.
What is the first element of the Mendeleev's periodic table?
The first element of the Mendeleev's periodic table is hydrogen (H).
What element is the first on the periodic table?
Hydrogen is the first element on periodic table. Its atomic number is 1.
