Atoms
True or False: Atoms can be broken down through every day physical and chemical changes.
False
What does the element's atomic number tell us about the atom?
The number of protons (or electrons)
What are the vertical columns on the periodic table called?
Groups
When an atom has no charge due to its equal number of protons and electrons, we call it...?
Neutral
Which element has 7 protons?
Nitrogen
What are the 3 subatomic particles that make up the atom? Include the charge for each one.
Protons (+)
Neutrons (no charge)
Electrons (-)
What does the atomic mass tell us about an atom?
The number of protons + neutrons
How many groups are found on the periodic table?
18
What are protons, neutrons, and electrons called?
Which element has 26 electrons?
Iron (Fe)
Where are electrons located?
In the electron cloud
If an atom has an atomic number of 11, and an atomic mass of 22, how many protons does it have?
11
What are the horizontal rows called on the periodic table?
Periods
What do we call elements that have properties of both metals and non-metals?
Metalloids
Which element frequently has no neutrons?
Hydrogen (because it's atomic mass is 1, meaning there are no neutrons)
Which particles are found in the nucleus of an atom?
Protons and Neutrons
If an atom has an atomic number of 16 and an atomic mass of 32, how many electrons does it have?
16
How many periods are found on the periodic table?
7
Which group of elements do not react with any others on the periodic table?
The Noble Gases (Group 18)
True or False: Elements in the same period are more similar to each other than elements in the same group.
False
Complete this statement: Atoms are neutral because they have the same number of....
Protons (+) and Electrons (-)
If an atom has an atomic number of 2 and an atomic mass of 4, how many neutrons does it have?
2
Which type of element (metals, non-metals, or metalloids) make up the majority of the periodic table?
Metals
Group 1, the highly reactive metals, are also known as the...
Alkali metals
The Halogens