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Actually all elements have isotopes. Isotopes are atoms that have different amount of neutrons. If you ever notice the atomic mass of an atom, it is the average Atomic Mass of all isotopes. If an atom had no isotope then that number would be an integer.
What else can I help you with?
Elements on very first Periodic Table?
Yes, there were elements on the first periodic table. I believe that there are still elements on the periodic table.
What was the problem with the first periodic table?
The first periodic table by Dmitri Mendeleev did not account for the discovery of isotopes (elements with the same number of protons but different number of neutrons) and did not leave spaces for later-discovered elements. Additionally, it did not show the relationship between atomic number and chemical properties.
What are the elements that are conductor from the first 20 elements of the periodic table?
Conductors in the first twenty elements include; Lithium - Li Beryllium - Be Carbon - C Sodium - Na Magnesium - Mg Silicon - Si Potassium - K Calcium - Ca
What are the 1st 20 elements of the periodic table made of?
The first 20 elements of the periodic table are made up of a variety of elements including hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, neon, sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chlorine, argon, potassium, and calcium.
What was Dmitri Mendeleev first periodic table called?
Dmitri Mendeleev first periodic table is called Mendeleev's periodic table. Elements are arranged according to atomic mass.
How many elements have there name ending in ium in the first twenty elements in the periodic table?
Calcium, Potassium, and Helium
What is liquid out of the first twenty elements?
at 250C and 101 kPa there are no elements that are liquid in the first twenty elements. the only elements on the periodic table that are liquid are bromine (atomic number: 35) and Mercury (atomic number: 80).
How are the properties of the first twenty elements in the periodic table related to their atomic structure?
check this perodic table at www.calculatoredge.com
Elements on very first Periodic Table?
Yes, there were elements on the first periodic table. I believe that there are still elements on the periodic table.
What was the problem with the first periodic table?
The first periodic table by Dmitri Mendeleev did not account for the discovery of isotopes (elements with the same number of protons but different number of neutrons) and did not leave spaces for later-discovered elements. Additionally, it did not show the relationship between atomic number and chemical properties.
What are the stable elements of periodic table?
First, it should be noted that it is not an element that is stable or unstable, but an isotope. If you don't know the difference, please read the Wikipedia article, or some other source, about "isotopes", Most of the elements up to #82 (Pb) have stable isotopes, with the exception of #43 (Tc) and #61 (Pm). Please note that all of these "stable elements" also have unstable isotopes!
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.
How many of the first 18 elements of the periodic table are solid?
Out of the first 18 elements on the periodic table, 10 are solid
What are Elements in the first row of the rare earth elements of the periodic table!?
Elements in the first row of the rare earth elements of the Periodic Table are called LANTHANIDES.
Elements in the first row of the rare elements of the periodic?
the lanthanides
Do isotopes have identical numbers of protons and electron?
Yes, but they have varying amounts of neutrons.
How many naturally occurring elements are listed on the periodic table?
from 88-95
