QUESTION IMAGE
Question
- what tool is used by scientists to classify elements?
the electromagnetic spectrum
the periodic table of elements
the water cycle
the richter scale
- which of the following is not true about elements?
a. the simplest form of matter: cannot be broken into simpler substances and still possess itsproperties
b. composed of one kind of atom, each atom has same properties; atoms all have the same atomicnumber
c. arranged on the periodic table in groups based on physical and chemical properties
d. arranged on the periodic table in groups based on color and state of matter
- which of the following accurately represents an element symbol
a. hydrogen
b. h
c. h₂o
d. hydro
- explain how atoms are related to elements.
- would you rather be haunted by a ghost, or be a ghost?
- if you were a ghost or could adopt a ghost, what wouldyou do?
1.
The Periodic Table of Elements is a tool used to classify elements based on their atomic number, properties, etc. The electromagnetic spectrum is related to light and radiation, the water cycle is about water processes, and the Richter scale is for earthquakes.
Elements are arranged on the periodic table by properties like atomic number, reactivity etc., not by color and state (though these can be noted but not the basis of grouping). Options a, b, c are correct facts about elements.
An element symbol is a one - or two - letter abbreviation. Hydrogen is the name (a), \(H_2O\) is a compound (c), “Hydro” is not a standard symbol (d), and \(H\) is the symbol for hydrogen.
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B. The Periodic Table of Elements