3. How many valence electrons are in the outermost energy level of each of the following elements? a. Helium b. Lithium c. Nitrogen d. Magnesium

Related Questions

• What will happen to the value of acceleration due to gravity if the Earth stops rotating about its axis?
• POINTS!!!! ASAP!!!Two or more substances that do not combine are called ____.Please have correct answer
• Down syndrome most often occurs when _____. A: a person inherits a recessive allele B: blood fails to clot properly C: sickle-shaped cells become stuck in blood vessels D: chromosomes fail to separate properly during meiosis
• What is required in the making of hemoglobin
• How does a steam engine do work? (a) steam enters a cylinder and pushes a piston.(b) steam expands and spins an axle.(c) steam turns a turbine. (d) steam causes wheels to turn.​
• what are cells? what is the relationship between cells and organisms?​
• Match the change of state of matter to the term: energy is absorbed into a liquid to turn it into a gas. Energy is absorbed and a solid turns into a gas. Energy is released and a gas changes to a liquid. 1. sublimation 2. condensation 3. evaporation
• Classify Use periodic table to classify the elements potassium (K) ,Bromine (Br) and argon, (Ar) according to know likely their atoms are to do the following A-Lose electrons to form positive ions B-Gain electrons to form negative ions C-Neither gain or lose electrons
• (True) or (False) Acceleration is the magnitude of average velocity
• How does weathering affect statues?