Measuring Instruments
Which instrument is used to measure mass?
digital balance , scale
This element keeps us alive
oxygen
The mass number is normally placed where?
At the top of the element
who discovered the element Radium
Marie Curie
Which element is in group 1 but not a metal
Hydrogen
This instrument is used to separate mixtures based on boiling points
Distillation Apparatus
Give the symbol for the element sodium
Na
WHat special name is given to group 1 elements?
Alkali Metals
This Scientist found the atomic theory
John Dalton
The study of carbon compounds are called?
Organic Chemistry
These two measuring instruments measures liquids precisely
Pipette , measuring cylinder
The symbol of potassium is?
K
Give the name of one element in group VII
Chlorine, Flourine
Who is known as the father of Chemistry
Antoine Lavosier
what namne is given to group 8 elements?
Noble gases
Used to separare immiscible liquids
Separating funnel
Ne is the symbol for which element?
Neon
Groups in the periodic table are in?
Columns
Dmitri Mendeleev is known as?
The father of the modern periodic table.
How many elements are there in the periodic table
118
These two instruments holds liquids for mixing
beaker , conical flask
what is the name of element # 5
Boron
Periods are in?
Rows
who discovered oxygen and its role in respiration and combustion?
John Priestley
Which elements are commonly used to make salt?
Sodium and chlorine