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Atomic Number and Mass Number
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What is the name for this element?
bismuth
What is the symbol number for this element?
Br
What is the atomic number for this element?
80
What is the atomic number for this element?
18
An atom has 25 protons and 30 neutrons. What is its atomic number?
25
An atom has 1 proton and 1 electron. What is its mass number?
1
An atom has 1 proton and 1 electron. What is its atomic number?
1
An atom has 25 protons and 30 neutrons. What is its mass number?
55
An atom has 50 protons and 69 neutrons. What is its atomic number?
50
An atom has 50 protons and 69 neutrons. What is its atomic number?
119
How many protons does element with atomic number 59 have?
59
Which side of the periodic table contains higher atomic number, top or bottom?
bottom
How are the elements arranged in the modern periodic table of the elements?
by atomic number
What information is given by a periodic table of the elements? Give at least two answers.
atomic number, atomic mass, element name, element symbol
What is this chart called?
the periodic table of the elements
What is the atomic number of the element with atoms containing 6 protons, 7 neutrons, and 6 electrons?
Atomic Number = 6
What is the mass number of an atom with 6 protons, 7 neutrons, and 6 electrons?
Mass Number = 13
Mass number equals the ___
number of protons plus number of neutrons.
Atomic number is the number of ___ contains in the atoms of an element.
protons
The nucleus of an atom contains ___.
protons and neutrons
The smallest particle of an element which has the same properties as the element is called ___.
an atom