Atomic Structure chem

Question 1

relative mass and relative charge of N

Answer 1

1,0

Question 2

relative mass and relative charge of P

Answer 2

1, +1

Question 3

relative mass and relative charge of E

Answer 3

1/1840, -1

Question 4

Whats done during nuclide notation?

Answer 4

Proton no and relative atomic mass swaps

Question 4

What are the only 2 elemnts in period 1?

Answer 4

Hydrogen and Helium

Question 5

What are physical properties definition?

Answer 5

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

Question 5

Proton no. is the same thing as

Answer 5

atomic no.

Question 6

what are chemical properties def?

Answer 6

refers to type of chemical reaction the substance udnergoes

Question 6

what are chemical props depended on?

Answer 6

no. of valence shells

Question 7

Duplet config means?

Answer 7

2 E in valence shell

Question 7

how can chemical prop be observed?

Answer 7

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

Question 8

Octet config mean?

Answer 8

8 E in the valence shell

Question 9

More electrons then protons means…

Answer 9

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

Question 10

less electron than protons…

Answer 10

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

Question 11

no. of valence shell determines what

Answer 11

1. group the atom belongs to
2. chemical prop of atom

Question 12

what is the only thing neutrons contribute to?

Answer 12

mass of the atom

Question 13

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

Answer 13

1. no. of valence electons
2. no of shells

Question 13

is H2 a metal or not?

Answer 13

non metal

Question 14

Why do atoms form ions?

Answer 14

to attain noble gas config and have a complete valence shell

Question 14

Metals ____ electons and non metals ____ electrons

Answer 14

1. lose
2. gain

Question 15

what are some properties of istopes?

Answer 15

same chemical properties but changes to physical properties

Question 15

What are isotopes?

Answer 15

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

Question 15

Mass number def?

Answer 15

mass of 1 atoms and is always a whole number