There is no element with the symbol Ci. The closest would Cl, which is chlorine, number 17 on the Periodic Table.
Atomic number= number of protons. Hydrogen atomic number=1
The atomic number of fluorine is 9.The atomic number of sodium is 11.
The atomic number is equal to number of protons in the atomic nucleus.
Gold is a metal element. atomic number of it is 79.
We get the number of neutrons. Atomic number is the number of protons, and atomic mass is protons plus neutrons.
It is: CI = 100+1 => 101
Elements atomic radii increase in size as they run down the columns of the periodic table or across the periodic table from right to left. So, Al is larger than Cl. XP
Answer: 20 You have to subtract the atomic mass from the protons. So it's 35-15=20 15 is the number of protons. 35 is the atomic mass.
An atom's atomic number tells us the amount of protons it has. If that atom is to remain neutral, it must also have the same number of electrons. Arsenic's atomic number is 33. Thus, it has 33 protons and 33 electrons.
The Roman numeral CI represents the number 101 and the Roman numeral XI represents the number 11.
The Roman numeral "CI" represents the number 101.
the answer is that it is called a atomic number.
The atomic number is equal to the number of the protons in the atomic nucleus.
Atomic weight in atomic mass units = the number of protons + the number of neutrons. The number of protons is your atomic number. Subtract that from the atomic weight for the number of neutrons.
this elemnt has an atomic number that is double the atomic number of silicon?
Subtract the atomic number from the atomic weight.
Synthetic ElementsQuasi-synthetic elements:Technetium, atomic number 43Promethium, atomic number 61Astatine, atomic number 85Francium, atomic number 87Neptunium, atomic number 93Plutonium, atomic number 94Transuranium elementsAmericium symbol Am, atomic number 95Curium symbol Cm, atomic number 96Berkelium symbol Bk, atomic number 97Californium symbol Cf, atomic number 98Einsteinium symbol Es, atomic number 99Fermium symbol Fm, atomic number 100Mendelevium symbol Md, atomic number 101Nobelium symbol No, atomic number 102Lawrencium symbol Lr, atomic number 103Transactinide elements Rutherfordium symbol Rf, atomic number 104Dubnium symbol Db, atomic number 105Seaborgium symbol Sg, atomic number 106Bohrium symbol Bh, atomic number 107Hassium symbol Hs, atomic number 108Meitnerium symbol Mt, atomic number 109Darmstadtium symbol Ds, atomic number 110Roentgenium symbol Rg, atomic number 111Copernicium symbol Cn atomic number 112Provisional names of Recently observed synthetic elements:Ununtrium symbol Uut, atomic number 113Ununquadium symbol Uuq, atomic number 114Ununpentium symbol Uup, atomic number 115Ununhexium symbol Uuh, atomic number 116Ununseptium symbol Uus, atomic number 117.Ununoctium symbol Uuo, atomic number 118