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Exam True or False

Science Midterm: First 20 Questions

QuestionAnswer
All matter is made up of elements. True. 118 make up everything.
All atoms of an element are different. False. Atoms of the same element can be the same.
A molecule is made up of one type of atom. False. It can be made up of 2 or more same or different elements.
A molecule is the smallest unit of an atom. False. An atom is the smallest unit of a molecule.
The space between carbon atoms are filled with air. False. Atoms are tightly packed together. Air is made up of atoms.
An optical microscope is needed to see carbon atoms. False. An electron microscope is needed.
Carbon atoms increase in size when the amount of carbon increases. False. Just the # of atoms increase.
One of the atoms has bigger particles. One of the atoms have heavier particles. False. Particles of an atom cannot grow or increase in weight.
The atoms have different kinds of particles. The atoms have different numbers of particles. False. Electrons, protons, and neutrons. Particles are specific to element.
Electrons orbit the nucleus like planets around the sun. True. Each atom has electrons that orbit the nucleus.
Electrons interact with neutrons in the nucleus. False. Protons interact with neutrons. The electrons do nothing except bond. Electrons do not ever enter the nucleus.
Electrons surround the nucleus of an atom. True. They are orbiting the nucleus, not touching, but orbiting.
Electrons join with protons to form the nucleus. False. Neutrons and protons make up the nucleus.
An atom is made up of two or more molecules. False. Molecules are made of up two or more atoms.
A molecule is made up of two or more identical atoms. True and False. A molecule is made up of two or more atoms that can be the same or different.
Only two atoms of different kinds can be present in a molecule. False. You can have two or more atoms of same or different kinds in a molecule. You can have hundreds of atoms in a molecule as well.
Two or more atoms of the same or different kinds can be present in a molecule. True. By definition of a molecule.
Carbon atoms are the smallest particles of the element carbon. True. You cannot break an element down any further. Atoms are the smallest piece of element.
Created by: nmarshall013
 



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