What is a atom?
Are the smallest particles of matter, that we cannot break down further by chemical means
Are the biggest particles of matter, that we can break down further by chemical means
Are the biggest particles of matter, that we cannot break down further by chemical means
Are the smallest particles of matter, that we can break down further by chemical means
A element contains 2 or more kinds of atoms
What are the symbols of these elements: Lithium, Sodium, Carbon, Nitrogen, Oxygen, Helium, Gold, Silver, Copper
Li, Na, C, N, O, He, Au, Ag, Cu
Li, So, C, Ni, O, He, G, S, Co
Li, Na, C, N,O, H, Au, S, Cu
Atoms consist of a nucleus and a cloud of that move around the nucleus. The nucleus is itself a cluster of two kinds of particles, and . All particles in an atom are very light. So their mass is measured in units, rather than . Protons and electrons also have an . You can identify an atom by the number of protons it has. The number of protons in the of an atom is called its protom number (or ). Every has an equal number of protons and electrons. Si atoms have no .
Diffusion - The particles mix and spread by colliding with other moving particles, and boucing off in all directions.
What is an ion?
The particles are atoms or groups of atoms that carry a charge.
The particls are atoms or groups of atoms that does not carry a charge
The partivles in a solid are arrranged in a fixed pattern or lattice
