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Worksheets6.1 CLASSIFICATION OF ELEMENTS
Total questions: 27
Worksheet time: 18mins
Matter consists of small and discrete particles known as ....................
element
atom
molecule
compound
An atom consists of ................ subatomic particles .
2
3
4
5
What constitutes the nucleus of an atom ?
Proton and particle
Proton and neutron
Proton and electron
Neutron and electron
Which of the following is true about mercury, iron and copper at room temperature ?
Brittle
Solid state
Malleable
Conduct electricity
Which of the following represents matter shown ?
Carbon dioxide
Soil
Water
Nitrogen
The vertical (up and down) columns in the Periodic Table are called
groups
towers
periods
atomic numbers
What does the 6 represent?
atomic mass
proton number
element name
chemical symbol
A subatomic particle that has a positive charge and that is found in the nucleus of an atom
Proton
elecrtron
groups
neutrons
A subatomic particle that has a negative charge
nobles gases
protons
electrons
neutrons
neutron
A subatomic particle that has a positive charge and that is found in the nucleus of an atom
not able to conduct heat or electricity, little to no metallic luster
A subatomic particle that has a negative charge
A small particle in the nucleus of the atom, with no electrical charge
What is the chemical symbol for Lead?
Le
Fe
Ld
Pb
What are the elements found in sugar ?
sodium and chlorine
calcium and carbon
carbon and hydrogen
carbon, hydrogen and oxygen
Shiny (luster) and good conductors of electricity:
Nonmetal
Lightning
Metal
Semi-metal
The horizontal rows on the periodic table are called
groups
families
periods
atomic numbers
Elements in the same group or family have the same number of
neutrons
valence electrons
electrons
energy levels
Electrons...
are found in the nucleus
give us the atomic number of an element
are how we identify each elements
have a negative charge
