Sphere
Early models of atoms used a solid, indivisible spherical particle called a "primordial atom" or "atomos." These models, proposed by ancient Greek philosophers like Democritus and Leucippus, suggested that all matter is composed of these fundamental, unchangeable building blocks. However, later advancements in atomic theory, particularly with the work of John Dalton and J.J. Thomson, revealed that atoms are actually composed of smaller subatomic particles with distinct properties.
Sphere
The early model of the atom, such as Dalton's solid sphere model, depicted atoms as indivisible, uniform spheres, while later models, like Thomson's plum pudding and Rutherford's nuclear model, introduced subatomic particles and a central nucleus. In contrast, the current quantum mechanical model describes electrons as existing in probabilistic orbitals around the nucleus rather than fixed paths. Despite these differences, both early and modern models agree that atoms consist of a nucleus containing protons and neutrons, surrounded by electrons, maintaining the fundamental concept of atoms as the basic building blocks of matter.
A solid figure.
You have to count the lines on a solid figure
Yes, Carbon atoms are solid :)
no a basketball is not a solid figure.
Dalton's model of an atom, proposed in the early 19th century, viewed the atom as a solid, indivisible sphere. He believed that atoms of different elements had different masses and sizes, and that they combined in simple whole number ratios to form compounds. However, this model was later replaced by more advanced atomic models that better explained the behavior of atoms.
No- a triangle is a plane figure, not a solid.
yes a triangle is a solid figure
Yes and no. Yes = plane figure No = solid figure.
A a solid figure on a flat surface is a plane figure (I do believe)