what is this element 1s22s22p63s23p64s23d5?

An isotope of an element has a half life of 10 years. How long would it take for this isotope to decay to about 1/16 of its original amount

Implement the Shape hierarchy shown in Fig. 9.3 below. Each TwoDimensionalShape should contain method getArea to calculate the area of the two-dimensional shape. Each ThreeDimensionalShape should have methods getArea and getVolume to calculate the surface area and volume, respectively, of the...

An array of integers named parkingTickets has been declared and initialized to the number of parking tickets given out by the city police each day since the beginning of the current year. (Thus, the first element of the array contains the number of tickets given on January 1; the last element...

Given the array a , write an expression that refers to the first element of the array.

Each ThreeDimensionalShape should have methods getArea and getVolume to calculate the surface area and volume, respectively, of the three-dimensional shape. Create a program that uses an array of Shape references to objects of each concrete class in the hierarchy. The program should print a text...