Chemistry-Atomz

The name of this particle means indivisible and it’s the building block of matter

Atom

The mass of an atom is wut ni-

Protons+Neutrons

Which particle has negative charge???

Electrone

Which particle has no charge

Neutrons

Where are the electrons located

In the spaces around the nucleus

T or F - Protons and Neutrons have around tha same mass

True

What does the 6 represent

Atomic number

In a neutral atom

Protons=Electrons

What is the atomic mass of this atom

7

Which particle has a positive charge

Proton

Value representing

Atomic number

How is the number of neutrons in the nucleus of an atom calculated

Subtract numbers of protons from the mass number

What is the mass number

The number of protons and neutrons

Elements in groups 3-12 of the modern periodic table and are further divided into transitional metals

Transition element

Which family does Uranium belong 2

Actinide series

Vertical columns of elements (increasing atomic number)

Group

Bro demonstrated a connection between atomic mass and the properties of elements

Dmitri Mendeleev

Elements from groups 1,2 and 13-18 are what

Representative elements

Which family does Calcium belong 2

Alkaline Earth metal (she went over this sh for legit 2 mins 🤦🏽‍♂️)

Which family does sodium belong 2

Alkali Metal

Which family does bromine belong 2

Halogen

Which family does europium belong 2

Lanthanide series

Which elements r similar to iodine

Chlorine

Which family does silver belong 2

Transition metal

Which family does xenon belong 2

Noble ass

Who found that you should arrange the elements by their atomic number not by atomic mass

Henry Moseley

Which counts as a representative element rmb it’s groups 1 and 2 13-17

Lead (Pb)

States that when the elements are arranged by increasing atomic number

Periodic Law

at the bottom what is amu being multiplied

1.40%

What are the percentages and so forth

24. 10, 22.10,52.40% multiply by the Amus add them up then divide by 100= Answer