Its 18 electron
1st orbital : maximum = 2 electrons
2nd orbital : maximum = 8 electrons
3rd orbital : maximum = 8 electrons
2+8+8 = 18 electrons
Answer and Explantion
Collect data-This should be the first step in coming up with a design of an instrument to measure a certain property. The data should comprise of the air temperatures, the wind speed values and recorded peak times for the ocean currents.
Build a prototype-This is sample equipment built from the data obtained to be used as a test instrument in predicting the catastrophic weather .The prototype is a mini design of the actual design.
Evaluate the result of their system-The results obtained from the prototype can be used for evaluation to determine the working of the designed devise. The results produced should show a connection that can be used to predict the weather according the values of temperature, wind speed and ocean current values.
Modify their design-After analyzing the results according to the parameters set for the design, the prototype can be improved to obtain a final design which will indeed produce the required results.
Answer: A
Explanation: The reactants of photosynthesis are everything to the left of the "———>" arrow, thus the reactants of photosynthesis are carbon dioxide, water, and sunlight energy. The products of photosynthesis are everything to the right of the "———>" arrow, thus the products of photosynthesis are glucose and oxygen.
Phosphorus Gradpoint<span />
Answer:
1 = A
2 = B
3 = B
Explanation:
1) Black holes occur when really big stars collapse on themselves. And, in order to get big, the star has to be an old one.
2) A black hole is something huge that swallows up everything, while a protostar is just the very beginning of a star.
3) Scientist can't truly know for sure, but they can infer about them due to the effects of the surrounding areas.
