periodic table

chemistry is fun with experiments

your teacher is not teaching chemistry well

you dont like chemistry

atom gains protons to form anion

anions are negative

Which property of elements increases across a period of the Periodic Table?

compuns of halgens ends with "ate"

isotopes are atoms having same proton number

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i have no idea what iam doing in chemistry

noble gases are used in plasma screens

valency can be -5

.Which element forms a coloured oxide? sodium copper chlorine

i am going to get  80% in midterm chemistry paper

metals form cations

which halogen is a brown colour gas

periods means number of electrons in outer shell

reactivity of metals decreases down the group

valence electrons are electrons in inner shells

non metals are mostly liquids and on left side of table