Chemistry Basics

Table Trivia

100

What are the vertical columns of the periodic table called?

groups

200

What are the horizontal columns of the periodic table called?

periods

300

Where on the periodic table can we look to determine how many energy levels an atom has?

the period that the atom is located on

400

Where on the periodic table can we look to determine how many valence electrons an atom has?

the group number, and the 2nd digit of it if it is a double-digit number

500

What is an atom called when it is not a neutral atom?

ion

Positivity

100

Where in an atom are the protons located?

the nucleus

200

How many protons does O (oxygen) have?

8

300

What number do we look at to determine how many protons an atom has? What is that number called?

atomic number

400

What is an atom called that has lost electrons (and as a result has more protons than electrons)?

cation

500

What happens to an atom if it loses protons?

It becomes a different element.

It's All Elemental

100

What element is in group 15 and period 4?

aresenic

200

What property is the periodic table organized by?

# of protons

300

Are most of the elements on the periodic table classified as metals or nonmetals?

metals

400

Where on the periodic table are the noble gases (which group or period)?

group 18

500

Which family of elements are shiny, soft and highly reactive?

alkali metals

Let's Not be Negative

100

What charge do electrons have?

negative

200

How many electrons does Calcium have?

20

300

What are valence electrons?

the electrons that are located on the outermost energy level of an atom

400

What is the largest number of electrons an atom can have on the first energy level?

2

500

What is an atom called that has gained electrons (and as a result as more electrons than protons)?

anion

Big or Small

100

Which has a bigger radius, Na (A#11), Cs (A#55) or Li (A#3)?

Cs

200

Which has a bigger radius, O (A#8), N (A#7) or F (A#9)?

N

300

Which will have a bigger radius, an anion or a cation?

an anion

400

How do energy levels impact the radius of an atom?

The more energy levels, the larger the radius.

500

Within a period, how does the number of protons and electrons affect the radius of an atom? Why?

The more protons and electrons, the smaller the radius is because the attraction between them pulls the energy levels in closer to the nucleus.