Atoms
Where is the nucleus located in an atom?
The center of an atom
How are the elements arranged on the periodic table?
By atomic number
Where are metals located on the periodic table?
Left, zigzag line, or right?
Left
Which example shows a change in a state of matter?
liquid pouring
wood burning
nail rusting
ice melting
Ice melting
Which statement is true about acids?
They feel slippery
They are sour
They turn red litmus paper blue
They taste sour
What is the charge of an electron?
Negative (-1)
What is the horizontal row on the periodic table called?
A period
A student makes the following list of properties that define a metal:
It can be hammered into shapes
It can be drawn into wire
It is a good conductor of electricity
What other property can be added to the list?
dull
poor conductor of heat
brittle
high density compared to nonmetals
high density compared to nonmetals
What is a chemical property?
boiling
burning
freezing
melting
Burning
Which statement accurately describes water?
It is a basic solution
It is a neutral solution
It will turn red litmus paper blue
It is a neutral solution
What is the charge of a proton?
positive(+)
What is the name of matter that is composed of only one kind of atom?
An element
A new element is discovered that is lustrous, malleable, conducts heat and electricity well. Into which periodic table group should this new element be placed?
gasses
metalloids
metals
nonmetals
metals
A piece of paper gets crumbled up. Was this an example of a chemical change or a physical change?
Physical change
What color would red litmus paper be after it is placed in acid?
blue
purple
red
yellow
Red
What does the atomic number tell us?
It tells us what the number of protons is
How would you classify a salad?
As an element, compound, heterogeneous mixture, or homogenous mixture?
Heterogeneous mixture
Examine the following list:
brittle
insulator of heat
dull appearance
malleable
Which properties describe a nonmetal?
1, 2, and 3
What would the breaking up of a large rock into smaller rocks be considered?
Physical change
A solution has a ph level of 5.5. What can be concluded about the solution?
The solution is acidic
The solution is basic
The solution is dilute
The solution is neutral
The solution is acidic
What is the charge of a neutron?
Neutral (0)
What is the correct chemical formula for table salt?
NaCl
NaCh
SoCl
SoCh
NaCl
Where are nonmetals located on the periodic table?Left, Zigzag, Right
On the right
Is a nail rusting an example of a chemical or physical change?
Chemical change
What is the range of a base on the ph scale?
8-14