1. An atom of silicon has a mass number of 28 and an atomic number of 14. How many protons and how many neutrons are in this atom? Show your calculation.

Explain why Group 1 elements tend to form 1 + ions and Group 7 elements tend to form 1 - ions. a) the number of electrons of the ions will be even numbers b) the electron configuration of the ions will match that of a halogen c) the electron

Which statement would support a merit of the Bronsted-Lowry base theory has over the Arrhenius base theory? A) Hydronium ions are Bronsted-Lowry bases released in solution. B) Bronsted-Lowry bases include both proton and hydroxide acceptors.

Where is the answer's i don't see it

By compressing a bottle of mustard in your hands, you get 60 ml of mustard in 5 seconds. Calculate the mustard flow.

How are ionic compound formed? when atoms share electrons to complete eight valence electrons when atoms lose electrons and form positive ions when electrons are transferred from one atom to another forming positive and negative ions that atract

Water is a colorless and odorless liquid. It can exist in solid, liquid, and gas states. It boils at 100 degrees C and melts at 0 degrees C. Which option best describes this information? A. These are the physical properties of water. B.

What can happen to a supersaturated silution?

What is the source for georthermal energy

What senses will we use only with permission from a teacher or adult in Physical Science Labs?

Where is chemistry used?