if igneous rock is placed under conditions of extreme heat and pressure which type of rock will it become

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17

Read "who built the pyramids? ”. leave this link open while you answer the questions throughout the assignment. give at least two reasons why some people claim the pyramids of giza were constructed by aliens.

As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.