Y7 particles, atoms, elements

How many atoms are in Li₂CO₃?

• 3

• 4

• 5

• 6

• 7

Elements consist of only one type of what?

• compound

• atom

• mixture

• symbol

The symbol for carbon is?

• Cu

• Cr

• C

• Ca

The columns of the periodic table are called what?

• periods

• lines

• rows

• groups

Elements in the same group have similar...

• atomic number

• appearance

• number of protons

• properties

When two or more different elements join together with a chemical bond, they are called ....

• atoms

• mixtures

• elements

• compounds

The elements sodium and chlorine react together to produce what compound?

• Sodium chlorine

• chloride sodium

• sodium chloride

• chlorine sodium

The compound copper sulfate (CuSO₄) contains how many of each element?

• Cu = 0 S = 0 O = 4

• Cu = 1 S = 1 O = 1

• Cu = 4 S = 4 O = 4

• Cu = 1 S = 1 O = 4

Which of the following best describes an atom?

• protons and neutrons grouped together
• protons and electrons grouped together
• a core (center) of protons and neutrons surrounded by electrons
• a core of electrons and neutrons surrounded by protons

Tags

NGSS.MS-PS1-1

Which of the following is found farthest from the center of an atom?

• nucleus
• proton
• neutron
• electron