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Questions and Answers
Matter is anything that has mass and occupies space
Matter is anything that has mass and occupies space
True (A)
Electrons have a positive charge
Electrons have a positive charge
False (B)
The nucleus of an atom is negatively charged
The nucleus of an atom is negatively charged
False (B)
Fertilizers are chemical compounds used to improve agricultural production.
Fertilizers are chemical compounds used to improve agricultural production.
John Dalton proposed the first scientific theory about the atom.
John Dalton proposed the first scientific theory about the atom.
The smallest subatomic particle is the proton.
The smallest subatomic particle is the proton.
Phosphorus is essential for plant growth.
Phosphorus is essential for plant growth.
The chemical symbol for chlorine is Cl.
The chemical symbol for chlorine is Cl.
The nucleus of an atom contains both protons and neutrons
The nucleus of an atom contains both protons and neutrons
The mass of an atom is equally distributed throughout the atom
The mass of an atom is equally distributed throughout the atom
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Study Notes
Matter and its Properties
- Matter is anything that has mass and occupies space.
Atomic Structure
- Electrons have a negative charge, not a positive charge.
- The nucleus of an atom is positively charged, not negatively charged.
- The nucleus of an atom contains both protons and neutrons.
- The smallest subatomic particle is the electron, not the proton.
- The mass of an atom is primarily concentrated in the nucleus, not equally distributed throughout the atom.
Chemical Compounds and Elements
- Fertilizers are chemical compounds used to improve agricultural production.
- John Dalton proposed the first scientific theory about the atom.
- Phosphorus is an essential element for plant growth.
- The chemical symbol for chlorine is Cl.
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