A. All atoms of all elements are the same size. B. Atoms of different<span> elements always combine in one-one ratios. C. Atoms of the same element are always</span>identical<span>. Which of the following was originally a part of Dalton's atomic theory, but had to be revised about a century ago?</span>
Answer:
Al: 3
S: 6
Explanation:
Al is in Group III. This means that it has 3 valence electrons.
S is in Group VI. This means that it has 6 valence electrons.
I hope this helps :)
Photosynthesis
Explanation:
Photosynthesis is the process where green plants manufacture their food in the presence of carbon dioxide, water and sunlight.
In this process, carbon dioxide is used up in the process. This helps to remove carbon dioxide from the atmosphere.
CO₂ + H₂O → C₆H₁₂O₆ + O₂
sunlight
Learn more:
Photosynthesis brainly.com/question/4216541
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Answer:
can be solid liquid or gas
is made of atoms and molecules
can change from one state to another without becoming a new substance just by adding or removing heat energy
Explanation:
ionic bond:
Bond formed when an atom donates its electron and other atom receives those electrons.
polar covalent:
Bond formed by equal sharing of electrons between both the atoms and there is an electronegativity difference between the two atoms.
Nonpolar covalent:
Bond formed by equal sharing of electrons between both the atoms and there is no electronegativity difference between the two atoms.
Metallic:
Formed between two metals.
So the bond between :
Phosphorus and chlorine-polar covalent bond as it is formed by equal sharing of electrons between both the atoms and there is an electronegativity difference between the two atoms.
Potassium and oxygen -ionic bond as here potassium donates its electron and oxygen receives those electrons
Fluorine and fluorine -Non polar covalent bond as formed by equal sharing of electrons between both the atoms and there is no electronegativity difference between the two atoms.
Copper and aluminum-metallic bond as Formed between two metals.
Carbon and fluorine -polar covalent bond as it is formed by equal sharing of electrons between both the atoms and there is an electronegativity difference between the two atoms.
Carbon and hydrogen --Non polar covalent bond as formed by equal sharing of electrons between both the atoms and there is no electronegativity difference between the two atoms.
Aluminum and oxygen--ionic bond as here aluminum donates its electron and oxygen receives those electrons
Silver and copper --metallic bond as Formed between two metals.