1) A measure of the quantity of matter in an : 1380702

1) A measure of the quantity of matter in an : 1380702.

 

1) A measure of the quantity of matter in an object is known as:

A) atoms.

B) density.

C) mass.

D) energy.

 

2) All the mass of an atom is considered to be in the:

A) protons only.

B) protons and neutrons.

C) electrons only.

D) protons, neutrons, and electrons.

 

3) If a neutral atom has an atomic number of 10, then we know that it has:

A) 10 neutrons.

B) 10 protons.

C) 10 electrons.

D) 10 protons and 10 electrons.

E) 10 protons, 10 electrons, and 10 neutrons.

 

4) An atom whose atomic number is 10 has how many electrons in its outermost energy level?

A) eight

B) ten

C) two

D) three

E) five

 

5) Isotopes are atoms of the same element that differ in their:

A) number of electrons.

B) number of neutrons.

C) number of protons.

D) ionic charge.

6) All the atoms of the same element will have the same:

A) number of protons.

B) number of neutrons.

C) number of protons and neutrons.

D) mass.

 

7) From its atomic number of 10, you can predict that a neon atom:

A) is not chemically reactive.

B) has an unfilled outer shell.

C) has 10 neutrons.

D) can easily gain or lose electrons.

 

8) Which of the following are found in the nucleus of an atom?

A) protons

B) neutrons

C) electrons

D) protons and neutrons

E) protons, neutrons, and electrons

 

9) An element with 22 protons, 22 neutrons, and 22 electrons would have an atomic number of:

A) 44.

B) 22.

C) 66.

D) 11.

10) Chlorine has an atomic number of 17, and argon has an atomic number of 18. From this information alone, you can predict that:

A) argon has more neutrons than chlorine.

B) argon is more chemically reactive than chlorine.

C) argon will more readily ionize than chlorine.

D) chlorine is more chemically reactive than argon.

E) chlorine has more neutrons than argon.

 

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1) A measure of the quantity of matter in an : 1380702

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