How many neutrons does element X have if its atomic number is 32 and its mass number is 75?

4. Propanol and isopropanol are isomers. This means that they have A) the same molecular formula but different chemical properties. B) different molecular formulas but the same chemical properties.

A standard cell potential of which value describes a spontaneous redox reaction?

Light elements with an atomic number less than 20 generally have a neutron to proton ratio equal to a. 1:1 b. 1.3:1 c. 1.5:1 d. 2:1

What is the pressure of a mixture of nitrogen and oxygen is partial pressure of nitrogen is 594MMHG and the punisher pressure of oxygen is 165MMHG

I just learned that Xenon does not react to nitrogen. What are some good early elements that nitrogen react to?

Rutherford calculated that a gold atom is about 10,000 larger than its nucleus. Thinking about his experiment and its results, how did he come to this conclusion?

Which atom in the ground state requires the least amount of energy to remove its valence electron? (1) lithium atom (2) potassium atom (3) rubidium atom (4) sodium atom

Which of the following is the correct Lewis structure for ammonia (NH3) ? Note: Hydrogen and nitrogen have one and five valence electrons respectively.

Which statement about the electron-cloud model is true? A. It is the currently accepted atomic model. B. it can easily be replaced by existing models C. It specifies the location and momentum of an electron. D.

To the nearest gram, what is the mass of one spoonful of sugar?