Key Terms Test Chemical Interactions Chapter 1 Section 1
CORRECTLY RESPOND TO THE FOLLOWING ITEMS.
- 1.neutrons
- A.
A region of an atom in which electrons of the same energy are likely to be found.
- B.
Negatively charged particles that move around outside the nucleus of an atom.
- C.
Small, positively charged particles that are found in the nucleus of an atom.
- D.
Small, uncharged particles that are found in the nucleus of an atom.
- 2.Anything that has mass and occupies space is__________.
- 3.protons
- A.
The smallest particle of an element is called an
- B.
Negatively charged particles that move around outside the nucleus of an atom.
- C.
Small, positively charged particles that are found in the nucleus of an atom.
- D.
The central core of the atom, containing protons and usually neutrons.
- 4.energy level
- A.
A region of an atom in which electrons of the same energy are likely to be found.
- B.
The central core of the atom, containing protons and usually neutrons.
- C.
Small, positively charged particles that are found in the nucleus of an atom.
- D.
Negatively charged particles that move around outside the nucleus of an atom.
- 5.An __________ is substance that cannot be broken down into any other substances by chemical or physical means.
- 6.nucleus
- A.
The smallest particle of an element is called an
- B.
The central core of the atom, containing protons and usually neutrons.
- C.
Anything that has mass and occupies space
- D.
Negatively charged particles that move around outside the nucleus of an atom.
- 7.A_________ is substance made of two or more elements chemically combined in a specific ratio, or proportion.
- 8.electrons
- A.
The smallest particle of an element is called an
- B.
Two or more substances that are mixed together but not chemically combined.
- C.
Anything that has mass and occupies space
- D.
Negatively charged particles that move around outside the nucleus of an atom.
- 9.A _______ is two or more substances that are mixed together but not chemically combined.
- 10.The smallest particle of an element is called an ___________.
- 11.scientific theory
- A.
A well-tested idea that explains and connects a wide range of observations.
- B.
The smallest particle of an element is called an
- C.
Two or more substances that are mixed together but not chemically combined.
- D.
A substance made of two or more elements chemically combined in a specific ratio, or proportion.
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