Dalton believed that: 1) atoms are indivisible 2) all atoms of an element are identical from our current knowledge of the atom we can conclude that a. dalton was correct. b. atoms of an element can have different numbers of protons. c. atoms are divisible. d. atoms of the same element are not always identical but all have the same mass.

Pls! plant cells and animal cells were observed under a microscope. the characteristics of two cells are listed below. cell p: does not capture sunlight cell q: has cytoplasm but no chloroplast which statement about the two cells is correct? cell q also has a cell wall. cell q also has large vacuole. cell p also has a large vacuole. cell p also has a cell membrane.

|using the periodic tablewarm-upuse the periodic table in the tools bar to answer the following questions.what elemental classification does oxygen belongto? done

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.