Which of the following groups contain three elements with stable electron configurations?

a. lithium, krypton, argon

b. argon, neon, barium

c. xenon, neon, boron

d. helium, xenon, neon

Why does eating involve kinetic energy?

A gas with an empirical formula C2H2O has a molecular weight of 120.6g/mol. A possible molecular formula for the gas is A) CH2O B) C2H2O C) C3H6O1.5 D) C6H6O3 E) C4H4O2

Magnesium (Mg) has an atomic number of 12. What is the ground-state electron configuration of magnesium? A. 1s21p62s22p2 B. 1s21p61d4 C. 1s22s22p63s2 D. 1s22s22p62d2

What are the properties of black holes

How many inks are in each dye in each pen?

Select the correct answer. Iron oxide reacts with aluminum to give aluminum oxide and iron. What kind of chemical reaction is this? Is The answer replacement

Which of the following could be considered a scientific statement? A) Solar power is our favorite source of electricity B) Soda a taste better than soda b C) Blue light is the most beautiful color of light D) X-rays have a lower frequency than

Is the dissolution of lithium iodide endothermic or exothermic?

How are the terms group and period used on the periodic table

Enter a balanced chemical equation for the reaction between aluminum metal and liquid bromine.