python program Write a function that create a list that contains the atomic numbers of the six alkaline earth metals: i. beryllium (4), magnesium (12), calcium (20), strontium (38), barium (56), and radium (88) to a variable called alkaline_earth_metals and return it. ii. Write a function that takes the list as input and returns the index contains Radiums atomic number? iii. Write the answer in two ways, one using a positive index and one using a negative index. iv. Write a function that tells you how many items there are in alkaline_ earth_metals? v. Write a function code that returns the highest atomic number in alkaline_earth_metals(do not use built-in function).