Atomic Structure chem Flashcards

1
Q

relative mass and relative charge of N

A

1,0

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2
Q

relative mass and relative charge of P

A

1, +1

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3
Q

relative mass and relative charge of E

A

1/1840, -1

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4
Q

Whats done during nuclide notation?

A

Proton no and relative atomic mass swaps

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4
Q

What are the only 2 elemnts in period 1?

A

Hydrogen and Helium

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5
Q

What are physical properties definition?

A

an aspect of matter that can be onserved/measured without changing the chemical identity of the substance

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5
Q

Proton no. is the same thing as

A

atomic no.

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6
Q

what are chemical properties def?

A

refers to type of chemical reaction the substance udnergoes

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6
Q

what are chemical props depended on?

A

no. of valence shells

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7
Q

Duplet config means?

A

2 E in valence shell

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7
Q

how can chemical prop be observed?

A

can only be observed by changing the chemical identity of the substance

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8
Q

Octet config mean?

A

8 E in the valence shell

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9
Q

More electrons then protons means…

A

the atom has gained electrons. the atom is thus a negative ion, anion.

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10
Q

less electron than protons…

A

it means the atom has loss electrons and thus is a positive ion, cation

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11
Q

no. of valence shell determines what

A
  1. group the atom belongs to
  2. chemical prop of atom
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12
Q

what is the only thing neutrons contribute to?

A

mass of the atom

13
Q

Group number is determined by? Period number is determined b?

A
  1. no. of valence electons
  2. no of shells
13
Q

is H2 a metal or not?

A

non metal

14
Q

Why do atoms form ions?

A

to attain noble gas config and have a complete valence shell

14
Q

Metals ____ electons and non metals ____ electrons

A
  1. lose
  2. gain
15
Q

what are some properties of istopes?

A

same chemical properties but changes to physical properties

15
Q

What are isotopes?

A

Isotopes are atoms of the same element with the same number of protons and valence electrons but different number of neutrons

15
Q

Mass number def?

A

mass of 1 atoms and is always a whole number

16
Q
A