chem

Atoms are uncuttable. All atoms of the same element are alike

• Dalton's Theory

• Thomson's Theory

• Rutherford's Theory

• Bohr's Theory

• Current Theory

Atoms are a positively charged substance with negatively charged particles scattered about

• Dalton's Theory

• Rutherford's Theory

• Bohr's Theory

• Thomson's Theory

• Current Theory

Atoms are made of mostly empty space with a dense, positively charged nucleus

• Dalton's Theory

• Bohr's Theory

• Thomson's Theory

• Rutherford's Theory

• Current Theory

Electrons move in definite orbits around the nucleus

• Bohr's Theory

• Dalton's Theory

• Rutherford's Theory

• Thomson's Theory

• Current Theory

Electrons do not move in orbits but instead at high speeds to form an electron cloud

• Rutherford's Theory

• Thomson's Theory

• Dalton's Theory

• Bohr's Theory

• Current Theory

The nucleus is where protons and neutrons are packed into an extremely dense area at the center of the atom

• True

• False

The electron cloud is where protons and neutrons are packed into an extremely dense area at the center of the atom

• True

• False

Isotopes are...

• Atoms of the same element that have different numbers of electrons

• Atoms of the same element that have the same number of electrons

• Atoms of the same element that have different numbers of neutrons

• Atoms of the same element that have the same number of neutrons

The chemical symbol is...

• The weighted average mass of all isotopes

• Like the ID of the element. It tells how many protons the atoms of that element contains

• A one or two letter symbol that represents the element. First letter is always capitalized

• The elements are named using Latin or Greek word roots based on properties, heavenly bodies, gods, places, and scientists

• The total number of protons and neutrons in the atom's most common isotope rounded to the nearest whole number

The element name is...

• The weighted average mass of all isotopes

• Like the ID of the element. It tells how many protons the atoms of that element contains

• A one or two letter symbol that represents the element. First letter is always capitalized

• The elements are named using Latin or Greek word roots based on properties, heavenly bodies, gods, places, and scientists

• The total number of protons and neutrons in the atom's most common isotope rounded to the nearest whole number