science quiz

Question 1

what the number 1 thing about atoms

Answer 1

they are the building blocks of matter

Question 2

protons

Answer 2

positively charged - found in the nucleus

Question 3

neutrons

Answer 3

no charge - found in nucleus

Question 4

electrons

Answer 4

negative - orbits nucleus in electron shells

Question 5

nucleus

Answer 5

contains protons and neutrons - central part of atom - small compared to size of atom

Question 6

electron shells

Answer 6

electrons orbit around the nucleus organized into electron shells - each shell contains a specific number of electrons

Question 7

atomic number

Answer 7

the number of protons in and atom - defining its identity

Question 8

atomic mass

Answer 8

the sum of protons and neutrons in and atom

Question 9

how do you find the number of neutrons in and atom

Answer 9

atomic mass - atomic number = number of neutrons

Question 10

what is the same number when the atom is neutral

Answer 10

electrons and protons

Question 11

elements

Answer 11

atoms with the same number of protons

Question 12

isotopes

Answer 12

atoms of the same element with different numbers of neutrons

Question 13

whats the definition of periodic table

Answer 13

a tabular arrangement of chemical elements organized based of their increasing atomic number, electron configuration, and recurring chemical properties

Question 14

what is another name for rows

Answer 14

periods

Question 15

what is another name for columns

Answer 15

groups and families

Question 16

elements in the same group have similar…

Answer 16

chemical properties

Question 17

elements in the same group have the same…

Answer 17

number of electron shells

Question 18

atomic mass is usually given in..

Answer 18

atomic mass units

Question 19

AMU stands for

Answer 19

atomic mass unit ( standard weight of elements )

Question 20

electron configuration

Answer 20

describes how electrons are distributed in an atoms electron shells - follows a pattern

Question 21

elements in the same group have similar

Answer 21

chemical propreties

Question 22

common groups

Answer 22

alkali metals / alkaline earth metals / halogens / noble gases

Question 23

elements in the same period have

Answer 23

the same number of electron shells

Question 24

metals

Answer 24

located of the left - good conductors of heat and electricity

Question 25

nonmetals

Answer 25

located on the right - poor conductors of heat and electricity

Question 26

metalloids

Answer 26

have properties of metal and nonmetal - found along diagonal line between metals and nonmetals of the periodic table

Question 27

alkali metals

Answer 27

group 1 - metal - reactive

Question 28

alkaline earth metals

Answer 28

group 2 - metal - reactive

Question 29

halogens

Answer 29

group 17 - nonmetals - reactive

Question 30

noble gasses

Answer 30

group 18 - gases - nonreactive due to full outer electron shell

Question 31

key elements

Answer 31

hydrogen and helium

Question 32

hydrogen

Answer 32

not metal - diatomic nonmetal

Question 33

helium

Answer 33

noble gas