Section 1 Pgs 1-13

Question 1

What particles produce electricity?

Answer 1

Protons and electrons

Question 2

How many naturally occurring elements are there?

Answer 2

92

Question 3

What is the atomic number of an element?

Answer 3

Number of protons in the nucleus of an atom

Question 4

The proton has a _________ charge and the electron has a ________ charge.

Answer 4

Positive; negative

Question 5

What particles are found in the nucleus of an atom? In the orbits?

Answer 5

Protons and neutrons; electrons

Question 6

What is the smallest particle that retains the characteristics of the compound? Of the element?

Answer 6

Molecule; atom

Question 7

Is salt an element or a compound? Oxygen? Water?

Answer 7

Salt = compound. Oxygen = element. Water = compound

Question 8

Which is heavier, and by how much: Proton or electron

Answer 8

Proton is 1840 times heavier than electron.

Question 9

Which has a greater diameter: proton or electron? By how much?

Answer 9

Electron is 3 times larger in diameter than a proton.

Question 10

What is the electrical charge of a neutron?

Answer 10

Electrically neutral