Elements in the same group on the periodic table have the same number of valence electrons, but elements in the same period will increase the number of valence electrons by one from left to right on the periodic table. TRUE OR FALSE

True

Explanation: If you take a look at a periodic table you will see a decimal number for example 7 N (Nitrogen) 14.01, the 14.01 is the total AMU (atomic mass unit) of the element witch includes the valence electrons. Hence true would be the correct answer.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.