Atomic Structure Review Crossword Puzzle

QUESTIONS LIST:

• mixture : a physical combination of two or more substances that retain their properties and can be separated.
• bond : the force that holds atoms together in a molecule or compound.
• compound : a substance formed when two or more elements chemically combine.
• element : a pure substance made of only one type of atom.
• sodium : a soft, silvery metal that reacts vigorously with water; symbol na.
• oxygen : a gas essential for respiration and combustion; symbol o.
• filtration : a process used to separate solids from liquids using a porous barrier.
• molecule : the smallest unit of a compound that retains its chemical properties.
• rutherford : scientist who proposed the nuclear model of the atom.
• atom : the basic unit of matter, consisting of a nucleus and electrons.
• nucleus : the dense centre of an atom containing protons and neutrons.
• proton : a positively charged particle found in the nucleus.
• electron : a negatively charged particle orbiting the nucleus.
• neutron : a neutral particle found in the nucleus of an atom.
• isotope : atoms of the same element with different numbers of neutrons.
• ion : an atom or molecule with a net electric charge due to loss or gain of electrons.
• funnel : a tool used to pour liquids into containers with small openings.
• evaporation : the process of a liquid changing into vapor.
• solute : the substance that dissolves in a solvent.
• solvent : the substance that dissolves a solute to form a solution.
• residue : the solid left behind after filtration or evaporation.
• crystalisation : the process of forming solid crystals from a solution.