Question

what was rutherfords atomic model called? *
planetary model
plum pudding model
nuclear model
solid sphere model
if we created a new element with atomic number 119, what type of property can we predict it to be? (which family group does it belong to)
alkali metals
alkaline metals
transition metals
metalloids
halogens

Explanation:

1. Rutherford's atomic model is called the Nuclear Model as it proposed a small, dense, positively - charged nucleus at the center of the atom with electrons orbiting around it.
2. The periodic table is arranged such that elements with similar properties are in the same group. The atomic number of francium (Fr) is 87 and it is an alkali metal. After the completion of the seventh period (atomic numbers 1 - 118), a new period would start and the first element of a new period in Group 1 is an alkali metal. So, an element with atomic number 119 would be an alkali metal.

Answer:

1. Nuclear Model
2. Alkali Metals