Which of the following electron configurations for neutral atoms is correct?

helium: 1s1, 1p1
nitrogen: 1s2, 2s2, 2p3
silicon: 1s2, 2s2, 3s2, 2p63p2
the third sub-level
li

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

The government has declared that a hurricane is likely to hit the east coast. which government division is part of acf and provides guidance to citizens? a. job opportunities for low-income individuals b. office of human services emergency preparedness and response c. assets for independence d. low-income home energy assistance program

Consider an ideal gas at 27.0 degrees celsius and 1.00 atmosphere pressure. imagine the molecules to be uniformly spaced, with each molecule at the center of a small cube. what is the length l of an edge of each small cube if adjacent cubes touch but don't overlap?