Structure of the atom

Question 1

what is the order of units from biggest to smallest?

Answer 1

-Tera
-Giga
-Mega
-Kilo
-deci
-centi
-milli
-Micro
-nano
-pico

Question 2

what are the units that make units bigger?

Answer 2

-Tera
-Giga
-Mega
-Kilo

Question 3

what are the units that makes units smaller?

Answer 3

-deci
-centi
-milli
-Micro
-nano
-pico

Question 4

how do you remember the size of Tera?

Answer 4

10^12

Question 5

how do you remember the size of Giga?

Answer 5

10^9

Question 6

how do you remember the size of Mega?

Answer 6

10^6

Question 7

how do you remember the size of Kilo?

Answer 7

10^3

Question 8

how do you remember the size of deci?

Answer 8

10^-1

Question 9

how do you remember the size of centi?

Answer 9

10^-2

Question 10

how do you remember the size of milli?

Answer 10

10^-3

Question 11

how do you remember the size of Micro?

Answer 11

10^-6

Question 12

how do you remember the size of nano?

Answer 12

10^-9

Question 13

how do you remember the size of pico?

Answer 13

10^-12

Question 14

what is the radius of an atom?

Answer 14

1 x 10^-10 m

Question 15

what do the black lines show on a hydrogen spectrum?

Answer 15

they show electrons that absorbed energy and moved to higher energy levels

Question 16

describe what happens when electrons gain energy

Answer 16

When electrons are given the ‘right’ amount of energy, they absorb it, and jump to a higher energy level. The ‘right’ amount of energy = energy difference between 2 levels. Electrons don’t like being excited, they return to the lower energy level and emit (release) the energy. This energy is electromagnetic radiation.