Question

A model of an atom shows eight electrons in rings that represent different energy levels. How many electrons are in each energy level?

A. two in the first energy level, six in the second energy leve
B. eight in the first energy level, zero in the second energy level
C. zero in the first energy level, eight in the second energy level
D. four in the first energy level, four in the second energy level

Which statement about an atom is correct?(1 point)
A. The neutron has no charge and is found outside of the nucleus.
B. The electron has a negative charge and is found outside of the nucleus.
C. The proton has no charge and is found in the nucleus.
D. The neutron has a negative charge and is found in the nucleus A student wants to draw a model of an atom.

Which statement describes how to find the number of neutrons to include in the model?(1 point)
A. Subtract the atomic number from the mass number.
B. Add the number of electrons to the number of protons.
C. Subtract the number of electrons from the number of protons.
D. Add the atomic number and the mass number.

What is the atomic number of an atom?(1 point)
A. the number of particles outside the nucleus
B. the number of particles in the nucleus
C. the number of neutrons
D. the number of protons
PLEEEEEEEEEEEEEEASSSSSEEEEEEE HELLLLP ASAPPPPPPPPPPPP...........................

Answer 1

Number 1. A, two in the first energy level, six in the second energy level.

Answer 2

Energy levels are arranged in increasing order of magnitude in accordance with the Bohr model.

The correct sequence of answers is as follows;

1) two in the first energy level, six in the second energy level

2) The electron has a negative charge and is found outside of the nucleus.

3) Subtract the atomic number from the mass number.

4)  the number of protons

An atom contains a nucleus and electrons arranged in energy levels outside the nucleus. Each energy level is filled with electrons.

The first energy level contains only two electrons, subsequent energy levels contain a maximum of eight electrons.

The proton is positively charged, the neutron has no charge and the electron is negatively charged. The proton and neutron are found inside the nucleus while the electrons are negatively charged and found outside the nucleus.

The mass number is the sum of the number of protons and neutrons. hence the number of neutrons is the difference between the mass number and the number of protons.

The number of protons in an atom is its atomic number.

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