MY PARENTS

Ya Allah! Bring me close to what is good for me and take away from me what is bad for me. A new day has began, all my focus is success. the hard work toward success continues. my motivators are my parent, they are always looking forward to my success. always in support for decision. they are the best parent ever, although sometimes parent are really nasty but you should know they are the best guardian for you through your journey in life

#Work_hard

#stay_humble

#dream_big.

RADIOACTIVITY: HENRI BECQUEREL

                Radioactivity is a spontaneous disintegration of nucleus resulting in the emission of particles and rays in the process. Note, the particles emitted are known as radioactive decay. When disintegration occurs it produces another substance called the daughter nucleus and the process is known as transmutation. The daughter nucleus is not stable until they go through several spontaneous disintegration.

                HENRI BECQUEREL was the first to investigate radioactivity through salt called uranium in the year 1896. The rays emitted by WOULD penetrate opaque materials, affect photographic plate and could also make certain material florescence. The famous scientist, PIERE and MARIE CURRIE in the year 1898 isolated two element called polonium and radium. From several experiment, it is observed that radiation liberates energy called nuclear energy, it ionizes gas to make material florescence, it affect photographic plates, it different from other chemical reaction because temperature and pressure do not affect the rate at which it emit rays or particles, it has high penetrating power, it is unstable.

                The types of particles emitted are gamma rays (g), alpha rays (a) and beta rays (b). but sometimes neutron is included.

The alpha ray has a symbol ⁴₂He, mass number of 4 and atomic number of 2

The beta rays has a symbol _-1⁰e, mass number of 0 and atomic number -1

The gamma ray has no symbol

CHARACTERISTICS

POINT TO BE NOTED	ALPHA RAYS	BETA RAYS	GAMMA RAYS
PENETRATING POWER	HAS LOW PENETRATING POWER	HIGHER THAN ALPHA RAYS	HAS THE HIGHEST
IONIZATION OF GAS	IT HAS THE HIGHEST. IONIZES GAS TO MAKE CERTAIN MATERIALS FLORESCENCE E.G. ZINC	IT HAS LOWER POWER TO IONIZE GAS WHICH MAKE MATERIAL FLORESCENCE E.G. ANTHECENSE NOT ZINC	DON’T IONIZE GAS
RANGES	IT MOVE CERTAIN CENTIMETERS	IT MOVES LONGER THAN ALPHA	IT HAS A WAVE LENTH OF 5X10^-9M
MATERIAL PENETRATES	PAPER	ALUMINIUM SHEET	LEAD BLOCK
SYMBOL	42He	-10e	NO SYMBOL
CHARGES	POSITIVE	NEGATIVE	NEUTRAL

More about radioactivity should be completed in your textbooks, good luck.

Recommended textbooks like essential textbook, new school chemistry and so on.

IT A NEW BRIGHT DAY

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riends, it a bright day. I woke up today seeing am late for work. I was really tired to jump up from my bed. I thought about something, what that?, it a thanks to my creator. I thank God for giving me a chance to see another day. What I can say, I wasn’t guaranteed before I went to bed last night but God gave me another chance to see the beauty of today again. Some people passed away before this morning, but yours is different. It a big thanks to the most high God, some are not privileged to see this day but we are here reading this post. Please always thank your creator because He is the giver and He can take anytime He feels like taking.

Kindly reply a capital letter “thank you”