The Periodic Table Stack #2618340

Term Definition
Blood composition Plasma, red blood cells, white blood cells and platelets
Plasma The liquid part of blood
White blood cells Fight infections
Arteries Carry blood away from the heart
Veins Carry blood to the heart
Capillaries Allow materials to pass in and out of the bloodstream
The heart Pumps blood all around the body
Right ventricle Pumps blood to the lungs
Left ventricle Pumps blood to the rest of the body
Vena cava Takes blood from the body to the right atrium
Pulmonary artery Takes blood from the right ventricle to the lungs
Pulmonary vein Takes blood from the lungs to the left atrium
Aorta Takes blood from the left ventricle to the rest of the body
Haemoglobin Made of iron and transport oxygen around the body through the blood
The Periodic Table Is a table which shows the elects in order of increasing atomic number.
Groups Vertical columns of elements.
Periods Horizontal rows of elements in the periodic table.
Alkali Metals (Group1) Have one electron on their outer shell. Are very reactive and behave like each other e.g lithium, sodium, potassium.
Alkali Earth Metals (Group 2) Have two electrons on their outer shells. Are not as reactive as alkali metals e.g beryllium, magnesium, calcium
Characteristics of Alkali Metals Soft and easily cutConduct electricityQuickly lose their shineLow density (float in water)Stored in oilLow melting points
Reaction of Alkali Metals with Water Hydrogen gas is released and a hydroxide is formed. The hydroxide dissolves in water.
Examples of Reaction Between Alkali Metals and Water Lithium + water = lithium hydroxide + hydrogenSodium + water = sodium hydroxide + hydrogen
Reactions of Alkali Metals with Air A metal oxide is formed.
Examples of Reactions Between Alkali Metals and Air Lithium + oxygen = lithium oxideSodium + oxygen = sodium oxide
The Halogens (Group 7) Have 7 electrons on their outer shell e.g fluorine, chlorine
The Noble Gases (Group 8) Have a full outer shell and are stable e.g neon, helium, argon
The Periodic Table Is a table which shows the elects in order of increasing atomic number.
Groups Vertical columns of elements.
Periods Horizontal rows of elements in the periodic table.
Alkali Metals (Group1) Have one electron on their outer shell. Are very reactive and behave like each other e.g lithium, sodium, potassium.
Alkali Earth Metals (Group 2) Have two electrons on their outer shells. Are not as reactive as alkali metals e.g beryllium, magnesium, calcium
Characteristics of Alkali Metals Soft and easily cut.Conduct electricity.Quickly lose their shine.Low density (float in water).Stored in oil.Low melting points.
Reaction of Alkali Metals with Water Hydrogen gas is released and a hydroxide is formed. The hydroxide dissolves in water.
Examples of Reaction Between Alkali Metals and Water Lithium + water = lithium hydroxide + hydrogen.Sodium + water = sodium hydroxide + hydrogen.
Reactions of Alkali Metals with Air A metal oxide is formed.
Examples of Reactions Between Alkali Metals and Air Lithium + oxygen = lithium oxide.Sodium + oxygen = sodium oxide.
The Halogens (Group 7) Have 7 electrons on their outer shell e.g fluorine, chlorine
The Noble Gases (Group 8) Have a full outer shell and are stable e.g neon, helium, argon

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