Question

match each atomic model to its description. possible points: 5 daltons model (first atomic model) tompsons model (plum pudding model) rutherfords model (nuclear model) bohrs model (planetary model) quantum mechanical model (current theory) electrons move around the nucleus at fixed distances called orbits or energy levels. electrons are found in the electron cloud, which is made up of regions called orbitals. the atom is mostly empty space with electrons located outside a positively charged nucleus. the nucleus makes up almost all the mass of the atom, but takes up almost no space in the atom. negatively charge electrons are scattered in a positively charged sphere. atoms of any one element are identical to each other but different from atoms of other elements. atoms combine in different whole number ratios to form compounds. atoms are made up one piece, no parts.

Explanation:

• Dalton's Model: Dalton proposed atoms are indivisible and atoms of same element are identical, combining in whole - number ratios.
• Thompson's Model: Thomson's plum - pudding model had negative electrons scattered in a positive sphere.
• Rutherford's Model: Rutherford's nuclear model showed atom is mostly empty space with electrons outside a small, dense, positively - charged nucleus.
• Bohr's Model: Bohr's model stated electrons move in fixed orbits or energy levels around the nucleus.
• Quantum Mechanical Model: The quantum mechanical model says electrons are in an electron cloud made of orbitals.

Answer:

• Dalton's Model (first atomic model): Atoms of any one element are identical to each other but different from atoms of other elements. Atoms combine in different whole number ratios to form compounds. Atoms are made up one piece, no parts.
• Tompson's Model (plum pudding model): Negatively charge electrons are scattered in a positively charged sphere.
• Rutherford's model (nuclear model): The atom is mostly empty space with electrons located outside a positively charged nucleus. The nucleus makes up almost all the mass of the atom, but takes up almost no space in the atom.
• Bohr's model (planetary model): Electrons move around the nucleus at fixed distances called orbits or energy levels.
• Quantum Mechanical Model (current theory): Electrons are found in the electron cloud, which is made up of regions called orbitals.