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Elements
Periodic Table
Element-ary
Important Vocab
Random
100
Each atom of carbon has the same number of ______________.
Each atom of carbon has the same number of protons.
100

How many rows are on the periodic table?

What is 7?

100

How many neutrons are in Polonium?

What is 125?

100

What is an element that has a different number of neutrons, but the same number of protons called?

isotope
100

What is the smallest subatomic particle? (has a mass 2000 times smaller)

electron
200
The atomic number is the number of _____________.
The atomic number is the number of protons.
200
Elements in the same row of the periodic table are said to be in the same ___________.
Elements in the same row of the periodic table are said to be in the same period.
200

How many elements have the atomic number 7?

1. Nitrogen

200

What is an element that has gained or lost an electron?

ion

200

Who created the periodic table?

Dimitri Mendeleev

300
The atomic mass is the number of ________ plus the number of __________. This is because ________ don't have any mass.
The atomic mass is the number of protons plus the number of neutrons. This is because electrons don't have any mass.
300
Elements that are in the same vertical column are in the same _____________.
Elements that are in the same vertical column are in the same group or family.
300

How many protons are in the element mercury?

80

300

Name the various charges of the subatomic particles

A neutron has a neutral charge

A proton is positive, and electron is negative.

300

What group is extremely active?

Alkali Metals

400
How many neutrons and in an element if the atomic mass is 11, and there are 5 protons?
6 neutrons
400

How many groups are on the periodic table?

What is 18?
400

How many electrons are in the element Niobium?

41

400

What are the properties of metals, non metals, and metalloids?

Metals-shiny, ductile, malleable, and good conductor

Metalloids- have properties of both

Non-metals- dull, not ductile, not malleable, and not good conductors

400

What is the octet rule and what group completes it?

It states that all atoms want to have at least 8 electrons in their outer shell. Noble Gases

500
If an element has an atomic mass of 40 and and atomic number of 20, how many protons and neutrons are in the atom?
20 protons and 20 neutrons
500

An element will be most similar to elements in it's ...

An element will be most similar to elements in it's family or group

500

Name the number of Protons, Neutrons, electrons, and the atomic mass of Tin.

50, 69, 50 and 118.710

500

What is a valence electron and how do we find them? 

an electron that can be gained or lost during a reaction. On the periodic table groups have a specific number of valence electrons

500

What group contains elements like fluorine and chlorine? how many valence electrons do they have?

halogens