Chemistry

Question 1

How many elements are there?

Answer 1

112

Question 2

how is the periodic table organized?

Answer 2

by increasing atomic mass

Question 3

what is the atomic number?

Answer 3

represents the order of the element

Question 4

where are the non metals found?

Answer 4

upper right, from 13 to 84

Question 5

where are the metals found?

Answer 5

in the middle to the left

Question 6

what is the simplest chemical unit?

Answer 6

the atom

Question 7

what is a mole?

Answer 7

an amount of element, equal to it’s atomic mass in grams

Question 8

where are the elections locates?

Answer 8

outside of the nucleus

Question 9

what are isotopes?

Answer 9

same number of protons in the nucleus but differ in neutrons

Question 10

what charge are protons?

Answer 10

positive

Question 11

what’s an element that has an isotope?

Answer 11

chlorine

Question 12

which elements are radioactive?

Answer 12

ones with super large atomic masses

Question 13

what’s am alpha particle?

Answer 13

is a He element, with 2 protons and 2 neutrons

Question 14

what is transmutation?

Answer 14

changing of one element to another

Question 15

what are beta particles?

Answer 15

electons emitted my nuclei

Question 16

what charge is on the alkali metals?

Answer 16

+1

Question 17

what charge is on the alkaline earth?

Answer 17

+2

Question 18

what charge is on the halogens?

Answer 18

-1

Question 19

what are the number of protons in a nucleus called?

Answer 19

atomic number

Question 20

what is the ground state?

Answer 20

an element in it’s lowest state