SECTION B - THEORY Answer all
la Define (1) Atomic number (ii) Mass number
(4mks)
Elements x and y have the following electronic configurations
X - 152 2s 2p O
Y - 152 2s 2p 3s
Na​

give me abc and i will get it for u.

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

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