<span>A rope with knots having a length of ten foot should be lowered to the hole. If a small open bucket fitted to the end will make the rescue more fast. The kitten will enter the bucket, or will try to climb up the rope.</span>
upper one :
Each metal atom contributes one or more electrons . Note:-free and mobile electrons are responsible for high thermal and electrical conductivity of metals. metals contain lot of free electrons while nonmetals don't have it. metals conduct electricity due to the presence of free electrons which are absent in non-metals.
down one :
metals are good conductors of both heat and electricity, whereas nonmetals generally cannot conduct heat or electricity. ... Metalloids tend to be shiny like metals but brittle like nonmetals. Because they are brittle, they may chip like glass or crumble to a powder if struck.
Xenon is #54 on the periodic table
Electromagnetic waves are used in everyday life. You are looking at your computer screen right now. The light that is coming off of the screen is visible light, a form of electromagnetic radiation. Electromagnetic waves are also used to send information. For example, AM or FM radios are radio waves that transfer sound information to your local radio.
