The element X has 2 valence electrons. its is a

The elements in Period 4 on the Periodic Table are arranged in order of increasing (1) atomic radius (2) atomic number (3) number of valence electrons (4) number of occupied shells of electrons

How do you use chemical energy in a sentence

Which of the following elements have the highest electronegativity? a) F b) N c) Br d) Cs e) Al

How did ernest rutherford change the atomic model?

Is it true non-metals can form cations when combined with metals and anions when combined with other non-metals.

What is hydrocarbon?

Why did most scientists reject Wegner's theory for nearly a half century?

Define prediction and explain how it is used to formulate a hypothesis.

A group of organisms that breed and produce offspring that can breed. A. Species B. ecosystem C. Biodiversity

What is the molality of a solution containing 100 grams of glucose (C6H12O6, molar mass = 180 g/mol) dissolved in 2.5 kg of water? 0.22 m 72 m 7200 m 40 m