1.hydrogen
2.helium
3.lithium
4.beryllium
5.boron
6.carbon
7.nitrogen
8.oxygen
9.fluorine
The Nelson Science Textbook of Grade 9 for Ontario states that Mendeleev's periodic table on pages 126-127 includes elements arranged by increasing atomic mass and grouped with similar properties. Mendeleev left gaps for undiscovered elements and predicted the properties of these missing elements based on the pattern of the known elements.
Almost all solid elements are heavier than air. This is why these elements do not float under normal atmospheric situations.
Elements are typically classified by the number of protons, since electron count can vary in ions. However, the element with 9 protons and 9 electrons (in the non-ionized configuration) is fluorine.
Elements with a lower proton number than fluorine on the periodic table include elements such as helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, and neon. These elements have fewer protons in their nucleus than fluorine, which has 9 protons. The proton number, also known as the atomic number, determines the identity of an element on the periodic table.
Nonane contain 84,37 % carbon and 15,62 % hydrogen.
A set with 9 elements has 2^9 = 512 subsets.
give the total subset of set with 9 elements
Sojourn to the Elements - 2013 1-9 was released on: USA: 11 October 2013
Sojourn to the Elements - 2013 2-9 was released on: USA: 27 February 2014
9
If you mean element #9 in the table of the elements, that's fluorine.
Fluorine is a non meta element. Atomic number of it is 9.
9. The ____________ is a type of map that helps understand the elements and their relationships
earth, wind, fire and water
here are 6 of the 9 elements: Oxygen, hydrogen, siicon, nitrogen, sulfur, chlorine....and i dont know the rest.
There are some art elements I can think of. There are... 1.Line 2.Colour 3.Tone 4.Texture 5.Letterform 6.Space 7.Form 8.Shape 9.Value There are 9 elements I can think of. ! :D
9, the elements are: arr[0], arr[1], ... arr[9]