The atomic number of an element is equal to its number of ___.
protons
A group (family) on the periodic table goes ___?
Up and down/vertical
Elements in Group 17, that gain/share 1 electron, are called the ___.
halogens
All electrons have a ____ electrical charge.
negative
All elements are made of ____.
atoms
Which of the following is NOT a property of metals?
a. malleable
b. ductile
c. poor conductor of heat/electricity
C. poor conductor of heat/electricity
The elements in a period (row) goes ___.
left to right/horizontal
Elements in Group 18 are called ___.
noble gases
All protons have a ____ electrical charge.
positive
What is the element name?

Tin
A material is said to be malleable if it ____.
can be hammered or rolled into flat sheets or other shapes
The metalloids are placed in what shape on the periodic table?
Zig-zag
Elements in Groups 3-12 are called ____.
transition metals
All neutrons have a ____ electrical charge.
neutral
What is the chemical symbol?

Sn
The elements in a group (family) of the periodic table have ____ properties.
similar
Elements are arranged on the periodic table by increasing ___.
atomic number
Elements in Group 2 are called ____.
alkaline earth metals
The center of an atom is called the ___.
nuclues
What is the atomic number?

50
Which group of elements shares characteristics with both metals and nonmetals?
Metalloids
Which element is NOT a metalloid?
a. Silicon (Si)
b. Boron (B)
c. Sulfur (S)
Argon is in which group? Number and category name
Group 18, noble gas
The name of the location that surrounds the nucleus is called the ___.
electron cloud
What is the atomic mass?

118.710