The Atom - Basics Flashcards

1
Q

Explain the structure of the atom ?

A

+In the nucleus - Proton and Neutron -held together by strong nuclear forces.where most of the mass is

+Orbiting in shells - Electrons -electrostatic forces .most of volume
diameter of an atom is teeny weanie

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2
Q

What is the Relative Mass of a Proton ?

A

1

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3
Q

What is the Relative Mass of a Neutron?

A

0

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4
Q

what is the relative mass of an electron ?

A

1/1840

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5
Q

what is the relative charge of a proton ?

A

+1

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6
Q

what is the relative charge of a neutron ?

A

0

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7
Q

what is the relative charge of a electron ?

A

-1

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8
Q

how do you find the number of protons in an atom ?

A

the atomic number

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9
Q

How do you find the number of electrons in an atom ?

A

atomic numnber

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10
Q

how do you find the number of neutrons in an atom ?

A

mass number -atomic number

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11
Q

what does the proton number do ?

A

identifies the element

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11
Q

What is a ion ?

A

a charged atom

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12
Q

how are ions created ?

A

gaining or losing electrons

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13
Q

what is diffrent in ions from normal atoms ?

A

the electron number

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14
Q

do negative ions has more or less electrons?

A

more

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15
Q

do postitive ions have more or less electrons ?

A

less

16
Q

how do you find the charge of an atom ?

A

protons-electrons

17
Q

what is an isotope ?

A

atoms with the same number of protons but different numbers of neutrons

18
Q

what does the number of electrons decide?

A

the chemical properties of an element

19
Q

do isotopes have the same chemical properties as each other ? give your reasoning

A

yes as they have the same electron configuration as one another

20
Q

what do the physical properties of an element depend on ?

A

the mass of the element

21
Q

why do isotopes sometimes have different physical properties ?

A

they may have different masses