Nature Of Matter

Test Description: Basic principles of chemistry (Section 2.1)

Instructions: Answer all questions to get your test result.

1) The three particles that make up atoms are _____.

2) What particles are found in a cloud surrounding the nucleus of an atom?

3) Isotopes are atoms of the same element with the same number of protons and a different number of ___.

4) What type of ion forms when an atom loses electrons?

5) Scientists show the composition of compounds by a kind of shorthand known as a chemical formula.

6) If an atom contains 11 protons and 12 neutrons, its atomic number is ____.

7) If an atom contains 3 protons, 4 neutrons, and 3 electrons, its mass number is ____.

8) A covalent bond is formed as the result of ____.

9) Of the three subatomic particles, _____ are most involved in forming chemical bonds.

10) Which of the following is a substance formed by the chemical joining of two or more elements in definite amounts?


*select an answer for all questions

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