Question

effects of periodic table elements ob humans​

Answer 1

Answer:

my answer is same i can't understand your question

Answer 2

Properties and Uses of Metals Elements

Metals and their Symbols Appearance Properties Uses

Copper (Cu) Reddish brown solid

-

Good conductor of electricity

-

Ductile

-

Corrosion resistant

-

Strong

-

Copper wires

-

Pipes Zinc (Zn) Grey solid

-

Good conductor of electricity

-

Corrosion resistant

-

Strong

-

Zinc is used inside batteries to produce electricity

-

Zinc plating for coins Aluminum (Al) Silvery shiny solid

-

Low density

-

Corrosion resistant

-

Strong and light

-

Malleable

-

Cooking foils

-

Drink cans Mercury (Hg) Silvery liquid

-

Does not react easily with other chemicals

-

Mercury vapour is fluorescent (gives out light)

-

Good conductor of heat

-

Expands evenly on heating

-

Used in thermometers

-

Used to measure blood pressure Magnesium (Mg) Grey solid

-

Burns with a dazzling white light

-

Forms alkali to neutralize excess acid in stomach

-

Used to make milk of magnesia which is used to relieve acid indigestion Iron (Fe) Grey solid

-

Good conductor of heat and electricity

-

Ductile

-

Strong

-

Magnetic

-

Used to make cutlery.

Properties and Uses of Non-Metals Elements Non-Metals and their symbols Appearance Properties Uses

Iodine (I) Black Crystals

-

Poisonous

-

Antiseptic

-

(prevents wound infection)

-

Used as antiseptic in medicine Chlorine (Cl) Greenish yellow gas

-

Poisonous

-

Bleaches dyes

-

Used for bleaches for clothes Sulphur (S) Yellow powdery solid

-

Poisonous

-

Soluble in organic solvent

-

(e.g. alcohol) but not in water

-

Used to make rubber tyres harder through a process called “vulcanization” Diamond (Carbon, C) Hardest substance known to man

-

Can be polished to form a shiny, reflecting, transparent solid

-

Used as diamond drills to cut through very hard metal Graphite (Carbon, C) Black solid

-

Smooth

-

Lightweight

-

Good conductor of electricity

-

Used to make rackets Hydrogen (H) Colourless gas

-

Gas with the lowest density

-

Explosive

-

Used to fill weather balloons and blimps Nitrogen (N) Colourless gas

-

Non-reactive, does not burn or support combustion

-

Low boiling point

-

Used to make fertiliser for farm Oxygen (O) Colourless gas

-

Essential for life

-

Does not burn but support combustion

-

Used in the flames for welding Neon (Ne) Colourless and odorless - Exist as a single atom - Noble gas Used in making neon advertising signs Helium (He) Colourless and odorless - Exist as a single atom - Noble gas - airships and balloons can be filled with the gas to gain lift. - Helium is used to condense hydrogen and oxygen to make rocket fuel.