Element X has an electron configuration that ends with 5p6. Which of the following describes this atom correctly?

a. unstable metal

b. noble gas

c. alkali metal

d. unstable nonmetal

To what family of the periodic table does this new element probably belong

How can 100ml of sodium hydroxide solution with a ph of 13.00 be converted to a sodium hydroxide solution with a ph of 12.00?

Equal volumes of 1 molar hydrochloric acid (hcl) and 1 molar sodium hydroxide base (naoh) are mixed. after mixing, the solution will be:

Which of the following is most likely the distance between two places on Earth? 6,456 miles 30 million kilometers 10.8 billion light years 1.14 astronomical units

What is the wavelength of radiation of frequency 4.80 * 1013 s-1?

How does heat transfer takes place between any two systems?

Hydrate name of CaCl2 * 8 H2O

Calculate the heat evolved from a mixture of 14.1 l of sulfure dioxide

Which stament best describes a solution

Which answer accurately describes the difference between speed and velocity? Read each answer choice carefully. Question 4 options: A. If speed is constant, then velocity is also constant. B. Speed requires direction.