What are the 4 phases of matter?
Solid, Liquid, Gas, Plasma
Element Phosphorus (P) has how many number of protons?
15 Protons
Melting ice is what type of change?
Physcial change
It is anything that has MASS and TAKES UP SPACE.
Matter
Deposition is?
Gas to solid.
Liquid to gas is also known as?
Evaporation
What is the element symbol of the element "Iron?"
Fe
Easy to reverse, no new product.
Physical change
How many Neutrons are there in element Copper(Cu)?
35 Neutrons
Elements are grouped into 3. These are .................., .................., and ...................
Metal, Non-metal and Metalloid
This group of element can be solid liquid or gas.
Non-metal group
Find the element : Group 13, Period 4
Gallium (Ga)
How will you write a "2-letter element?"
First letter is uppercase/big, second letter is lowercase/small
What will happen if you boil 200 mL of water with salt?
The boiling point is raised/increased.
This element is used mostly in electronic components.
Silicon(Si)
Burning wood is an example of ......................... change.
chemical
What do you call when liquid turns to solid?
Freezing
Find the element : Group 2, Period 3
Magnesium (Mg)
How will you describe a metal element?
Solid, Shiny, Malleable, Ductile, High melting and boiling point, High Density, Good conductor of heat and electricity
How many electrons do element Ytrium(Y) have?
39
Give one example of a metalloid element.
B, Si, Ge, As, Sb, Te, Po
Choose the elements: Fe, H, Na, CO2, H2O, s, K
Fe, H, Na, and K
How many elements are known today?
118
What will happen if you put an egg in a glass of water and in a glass of water with salt?
Water only = sink, Water+salt = float
Find the element : Group 12, Period 6
Mercury (Hg)
Choose the compounds : N2O, Ca, CO2, Li, SO4, Po
N2O,CO2,SO4