Unit 3 - Atoms and Periodic Table

Question 1

How many protons does Sulfur with a -2 charge have?

Accepted Answer

16

Question 2

How many stable isotopes does Francium-223 have?

Accepted Answer

1

Question 3

Family #4 is _____

Accepted Answer

semi-conductors

Question 4

This family is non-reactive and has a full outer energy level (valence) of electrons

Accepted Answer

noble gases

Question 5

Mass of a Proton ___ Mass of a Neutron

Accepted Answer

=

Question 6

The nucleus of an atom contains __ and ___

Accepted Answer

protons and neutrons

Question 7

An oxygen atom with 8 protons, 9 neutrons, and 10 electons has a charge of __

Accepted Answer

-2

Question 8

This scientist described the path of electrons as specfic orbits around the nucleus

Accepted Answer

Bohr

Question 9

Which element is shown?

Accepted Answer

Nitrogen

Question 10

This scientist used the gold foil experiment to discover the nucleus of an atom

Accepted Answer

rutherford

Question 11

How many dots would the Lewis Dot diagram have for the element Phosphorous

Accepted Answer

5

Question 12

Lead has ____ valence electrons

Accepted Answer

4

Question 13

The halogens exhibit the following properties ...

Accepted Answer

very reactive, form a -1 charge

Question 14

An element that gains or loses electrons is a(n)______.

Accepted Answer

ion

Question 15

How many neutrons would be found in Magnesium-25

Accepted Answer

13

Questions 15