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Which element has the smallest first ionization energy Na K Rb Li?
The element with the smallest first ionization energy is Francium, as it is located in Group 1 of the periodic table and has the largest atomic size. Among the elements listed, lithium (Li) would have the smallest first ionization energy as it is closer to the upper right of the periodic table compared to sodium (Na), potassium (K), and rubidium (Rb).
Was the first element on the periodic table of elements carbon?
NO!!! Hydrogen (H) is the first element on the Periodic Table. Reason Atomic No. = 1 Atomic mass( of protium) = 1 Carbon lies 6th position. Atomic No. = 6 Atomic mass = 12
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.
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 element H on the periodic table?
The element 'H' is hydrogen, and is NO. 1 in the Periodic Table.
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.
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 is The first element on the periodic table of elements is hydrogen.?
The elements in the periodic table are arranged according to their atomic numbers, which are the numbers of protons in their atomic nuclei. The atomic number of hydrogen is 1 because it's atoms have one proton, which is why it's the first element in the periodic table.
Is carbon the first element on the periodic table of elements?
No, carbon is not the first element on the periodic table of elements. Hydrogen is the first element on the periodic table.
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.
What is the first element of the Mendeleev's periodic table?
The first element of the Mendeleev's periodic table is hydrogen (H).
Was carbon the first element on the periodic table?
The first element in the periodic table of Mendeleev is hydrogen, not carbon.
What element is the first on the periodic table?
Hydrogen is the first element on periodic table. Its atomic number is 1.
Which element has the smallest first ionization energy Na K Rb Li?
The element with the smallest first ionization energy is Francium, as it is located in Group 1 of the periodic table and has the largest atomic size. Among the elements listed, lithium (Li) would have the smallest first ionization energy as it is closer to the upper right of the periodic table compared to sodium (Na), potassium (K), and rubidium (Rb).
