The atomic number of carbon is 6. what is the mass number of a carbon atom with 5 neutrons?

What trend in ionization energy occurs across a period on the periodic table?

Select the reagent (s) that would efficiently convert the starting material to the product for the following transformations (if more than one reagent is needed, list them in order separated by commas with NO spaces. For example, e, d, c).

What are the physical properties of earths layers?

Calculate the mass of NaCl required to prepare 0.5 liters of a 2.5 molar solution of NaCl. 11 Na 22.99 Sodium 17 Cl 35.45 Chlorine A. 37.1 g B. 54.7 g C. 73.1 g D. 112.1 g

Why did improvements in agriculture lead to the growth of cities?

The ionic naming rules

What is the PH of a solution whose [H+] is 0.0007

What was concluded about the structure of the atom as the result of the gold foil experiment? (1) A positively charged nucleus is surrounded by positively charged particles. (2) A positively charged nucleus is surrounded by mostly empty space.

Andre is predicting the products of chemical reactions. In one reaction, a hydrocarbon is the only reactant. What is the best prediction and explanation of this reaction? Two new compounds form as the hydrocarbon undergoes a synthesis reaction.

What evidence is there that electrons move around in definite pathways around the nucleus? What evidence is there that electrons m