Why is there math in science?????!?
Calculate the electrons for Nickle
28
Element at group 5, period 4
V- Vanadium
Atomic Number
The rounded atomic mass number
What are the two regions of an atom?
Nucleus and Electron cloud
What does amu stand for?
Atomic Mass Unit
Calculate the mass Number for vanadium
51
Family name for group 1
Alkali Metals
Metalloid
Element that has some characteristics of metals and some of none metals
What is found within the nucleus
Protons and Neutrons
What is present between the nucleus and electron cloud of an atom?
Empty space
How many neutrons are in potassium-K?
20
When you mix this group of elements with a metal it creates a salt
Halogens
Ductility
What is found on the electron orbital and what is its charge?
Electrons, Negative
The nucleus of an atom has the same density of a one by one foot box with how many cars in it?
6.2 Billion
How many protons, Neurons, and electrons are in Hafnium- Hf
72, 107, 72
Name of the group that is least reactive
Nobel Gases
Elements of life
Carbon, Oxygen, Nitrogen, Phosphorus, Sulfur
What is the most dense part of the atom?
Nucleus
If we were to blow up the size of an atom to the size of a football stadium, the Nucleus would be the size of____
Marble
What element has 61 neutrons and a mass number of 108
Silver
Why are the unknown properties still known?
Their chemical and physical properties make them hard and unsafe to identify and work with
Reactivity
An atoms ability to make a bond with other atoms, and how quickly this happens
Why is the middle of the atom have the most weight? (two parts to this answer)
It contains protons and Neutrons that both have a Amu of 1
What is the mass of an electron
1/1836 amu