Atoms, Elements, Compounds, and Mixtures

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Can you name the Atoms, Elements, Compounds, and Mixtures?

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Elements that make up about 97% of the human body
particles in an atom's nucleus that do not have an electric charge
True or False? Metalloids are elements that have characteristics of both metals and nonmetals.
Matter that is only made up of one kind of atom.
Rutherford's experiment showed that most of an atom is made up of___________
An uncharged particle in the nucleus of an atom.
J.J. Thomson used the fact that ___________ charges attract each other in his cathode-ray tube experiment
These particles have a neutral charge.
Matter that has the same composition and properties throughout.
True or False? Fruit salad is an example of a heterogeneous mixture
During Thomson's experiments, streams of ________________were affected by the magnet.
Rutherford's use of gold foil showed that most of an atom is made up of ______________.
He developed a model called the atomic theory of matter.
These particles have a positive charge.
Elements that have characteristics of both metals and nonmetals.
The number of protons in the nucleus of an atom of an element.
Mixtures with visible components.
A sample of matter with the same composition and properties throughout.
Air is an example of a _____________
the mass number of an atom consists of the mass of the protons and _________
contains only one kind of atom
These particles have a negative charge.
Isotopes are atoms of the same element that have a different number of _________
Water is an example of a _______________
QuestionsAnswers
A dust particle is an example __________
The region surrounding the nucleus in which the electrons move about.
J.J. Thomson's cathode-ray experiments led to the discovery of the _______________
True or False? J.J. Thomson's experiments with cathode rays led to the discovery of the neutron.
Mixtures are the same throughout.
Two or more substances mixed together which don't make a new substance
Two or more substances that are together, but not combined.
Elements that generally have a shiny or metallic luster.
A negatively charged particle that is part of every kind of matter.
A compound with the formula C6H12O6 is made up of how many atoms?
Electric conductivity is a property associated with________.
A positively charged particle that is present in the nucleus of all atoms.
True or False? Rutherford's experiments showed that alpha particles could pass through foil because most of an atom is neutrally charged.
The number of neutrons plus protons in the nucleus of an atom.
Most elements found on the left side of the periodic table are_____________
To find the number of neutrons in an isotope, subtract the atomic number from the ______ number
Atoms of the same element that have different numbers of neutrons.
The atomic number of an element tells the number of __________in the nucleus of an atom of that element
A pure substance whose smallest unit is made of atoms of more than one element.
An atom of the element with the atomic number of 6 always has 6 ______ in its nucleus
Matter that is NOT considered to be a single substance is called a _________.
The mass of the mixture of the isotopes for an element.
A substance whose smallest unit is made up of atoms of more than one element.

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