Obsidian is not an element, therefore it does not have an atomic number or a place on the Periodic Table. Obsidian is a volcanic glass which forms when lava cools rapidly.
bronze is an alloy of the elemens copper and tin periodic table contains elements and not alloys.
sodium is the element
The element with atomic number 34, selenium.
The number above an element's symbol in the periodic table represents its atomic number, which indicates the number of protons in the nucleus of an atom of that element. Atomic number determines the element's unique identity and its placement in the periodic table.
The number in the upper right corner of each element on the Periodic Table is its atomic number. This number represents the number of protons in the nucleus of an atom of that element.
The number listed above the symbol of an element on the periodic table is the element's atomic number.
The atomic number of the Periodic Table element Period is 92.
The atomic number of the element lanthanum on the periodic table is 57.
The atomic number on the periodic table is the number of protons for the element.
Look it up in "periodic table of elements" You can find the number of a particular element by looking at the Periodic Table; you can also do this by counting the number of protons in the nucleus.
Hydrogen is the first element on periodic table. Its atomic number is 1.
The element with the largest atomic number on the periodic table is Oganesson, with the atomic number 118.
Atomic number of an element can be found on the periodic table. It is located at the upper left-hand corner of the table.
The atomic number of the element with the symbol "Pt" on the periodic table is 78.
Sodium is the eleventh element on the periodic table.
The element 'H' is hydrogen, and is NO. 1 in the Periodic Table.
Copper is the element Cu on the periodic table. It has an atomic number of 29.