An element is made up of A. a mixture of different types of atoms. B. different types of atoms that have been combined chemically. C. only one type of atom. D. different types of cells.

What is a chemical element?A substance made out of carbonA mixture of different types of atomsA substance made up of only one type of atomAny substance in which the atoms are too small to see

Select the definition of a compound.A mixture of atoms of different elements without bondingAn element containing two or more different types of atomsA substance formed from atoms of different elements bonded togetherAny substance made out of moleculesI'm not sure

Select all the true statements.Two different substances can be composed of different chemical elements.Two different substances with crystal structures can be composed of the same chemical elements in the same ratio and also have the same arrangements of atoms.Molecules of two different substances can be composed of the same chemical elements but have different numbers of atoms.Submit

Which one of the following statements about elements is correct? Elements consists of one type of atoms.Two compounds can form elements.All the elements consist of different type of atoms.All the above

According to the modern atomic theory:Question 6Select one:a.Chemical reactions do not change the way the atoms are combined in compounds.b.Chemical compounds consist of atoms combined in specific ratios.c.All matter is not composed of atoms.d.The atoms of a given element are the same as atoms of all other elements.