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

Doug has filled a long tray with an even layer of sand. Doug then uses two bricks to prop up one side of the tray. Next, Doug uses a watering can to pour water onto the high side of the tray. what natural process is he making

Which best defines transparent and provides an example of a material that is transparent to light? A. the ability to absorb light; for example, the leaf of a plant B. the ability to transmit light; for example, water C.

The change in momentum

Which of these stars has the hottest core? (a) a white main-sequence star (b) an orange main-sequence star (c) a red main-sequence star

Common effects of cocaine include

What do nuclear fission and nuclear fusion have in common?

When plug prongs are connected to the metal case of an appliance, a part that should always be placed next to the case is a a. flat metal washer. b. hexagonal aluminum shoulder. c. steel nut. d. mica washer.

For a constant voltage, increasing the resistance will cause the current to decrease

Soils are made up of mineral portion an organic portion air and water what is meant by the word organic Nonliving mineral in composition Composed of several organs Material that was produced by or was/is part of living organism Musics in nature

A car is traveling at 42.0 km/h on a flat highway. (a) If the coefficient of friction between road and tires on a rainy day is 0.107, what is the minimum distance in which the car will stop?