What is the correct electron configuration for oxygen?

a. 1s22s22p4

b. 1s22s22p5

c. 1s22s22p63s23p2

d. 1s22s22p63s23p4

How many protons, electrons, and neutrons does the following isotope contain? 40 Ar

An unstable isotope of ta-184 is a beta producer. what is the other product of the reaction?

What are the simple forms of carbohydrates

List three useful applications of halogens

What effects would El Niño most likely have on organisms? a El Niño would cause continents to move to different parts of the planet. b El Niño would lead to the extinction of a species.

Calculate the cell potential for the galvanic cell in which the reaction Fe (s) + Au 3 + (aq) - ⇀ ↽ - Fe 3 + (aq) + Au (s) occurs at 25 ∘ C, given that [ Fe 3 + ] = 0.00150 M and [ Au 3 + ] = 0.797 M.

Magnesium is lighter than other structural metals, so it is increasingly important in the design of more efficient vehicles.

The relationship between number of particles and pressure is As number of particles increases, pressure increases As number of particles increases, pressure decreases The two are not related

Consider the reaction: Al2S3 + 6 HCl → 2 AlCl3 + 3 H2S The reaction has a 29.1% yield. How many grams of Al2S3 are needed to react with 30.0 moles of HCl? a) The molar mass of Al2S3 is 150.16 grams/mole. b) The molar mass of HCl is 36.46 grams/mole.

Why is Earth's temperature just right for life? A. Earth's core is hot enough to heat Earth's surface. B. Earth's magnetic field creates suitable temperatures on Earth's surface. C. Earth's crust is warmed by heat from the sun. D.