I need help Which of the following facts did Dalton realize?
a. Two different elements can only form one type of compound
b. Each compound contains a fixed ratio of atoms.
c. Atoms of the same element can have different masses.

List the two type of transporst that the cell in orde to transport molecules acroos the membrane

You may expect bonds between two atoms which each have n covalent lonic metallic hydrogen

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.